With this addon you can get up to 6 lootbags, each of which could contains some items from a big list of items, depends on which one you got.
You can get anyone of the following lootbags:

Common
Uncommon
Rare
Epic
Legendary
Nether

To obtain any of these lootbags you need to defeat mobs, fishing or even you can find them on any chest of any structure (only in the nether for nether lootbag).
For the legendary loot bag, you only can obtain it by defeating the next mobs: warden or wither

v1.1.0

Now this addon adds a new structure where you can find at least 2 uncommon lootbag.

This structure could spawn anywhere in overworld

You can know all of the loots on each bag in this spoiler:

Common

1 Wooden Boat or Bamboo Raft

1 Armor Stand

5 Wheat Seeds (o simplemente Seeds)

8 Kelp

1 Damaged Bow

5 Glow Berries

8 Snowball

1 Bucket

8 Sweet Berries

1 Damaged Fishing Rod

1 Painting

5 Egg

5 String

1 Damaged Flint and Steel

1 Item Frame

5 Potato

5 Cocoa Beans

5 Carrot

6 Dried Kelp

8 Sugar

1 Wooden Hoe

1 Leather Horse Armor

1 Leather Armor Piece

8 Raw Food (any)

3 Cooked Food (Cooked Cod, Cooked Mutton, Cooked Chicken, Baked Potato, Cooked Salmon)

8 Rotten Flesh

1 Beetroot Soup

1 Mushroom Stew

4 Bowl

1 Sword (Stone or Wooden)

8 Arrow

3 Glass Bottle

6 Cookie

8 Bone

4 Apple

8 Bone Meal

6 Bread

3 Poisonous Potato

5 Beetroot

8 Melon Slice

6 Ink Sac

8 Dye

8 Clay Ball

4 Leather

6 Charcoal

4 Coal

2 Raw Copper

2 Raw Iron

4 Book

6 Feather

6 Flint

6 Gunpowder

6 Iron Nugget

6 Gold Nugget

6 Copper Nugget

8 Paper

12 Stick

8 Wooden Planks

12 Wooden Fence

4 Fence Gate

6 Wooden Stairs

3 Wooden Door

4 Wooden Trapdoor

6 Glass

8 Glass Pane

8 Ladder

8 Wooden Slab

12 Cobblestone

5 Wool

6 Carpet

6 Concrete Powder

1 Brush

1 Bed

12 Torch

4 Candle

1 Campfire

1 Furnace

3 Bookshelf

1 Lectern

1 Composter

2 Chest

3 Barrel

4 Sign

4 Hanging Sign

6 Lever

8 Button

4 Tripwire Hook

6 Wooden Pressure Plate

6 Pottery Sherd

1 Target

5 Grass Block

6 Coarse Dirt

6 Mud

6 Clay

6 Stone

8 Gravel

8 Sand

8 Red Sand

4 Cactus

4 Wood Log

12 Leaves

5 Sapling

2 Pumpkin

6 Bamboo

6 Snow Block

Uncommon

1-2 Common Loot Bag

1 Bow

1 Damaged Crossbow

1 Water Bucket

1 Powder Snow Bucket

1 Bucket of Fish

3 Fire Charge

1 Fishing Rod

1-2 Bottle o' Enchanting

1 Flint and Steel

4 Glow Item Frame

2-4 Ender Pearl

1 Potion

5 Redstone Dust

2 Lead

1 Damaged Trident

1 Minecart

1 Hoe (Stone, Copper, Iron, or Gold)

1 Horse Armor (Iron or Gold)

1 Compass

1 Armor Piece (Chainmail or Gold)

1 Damaged Iron Armor Piece

12 Cooked Food (any)

1 Carrot on a Stick

1 Turtle Shell

1 Milk Bucket

2 Goat Horn

1 Rabbit Stew

5 Name Tag

1 Sword (Damaged Iron or Gold)

1 Shield

5 Amethyst Shard

16-24 Arrow

8 Glass Bottle

4 Honey Bottle

12 Cookie

14 Bone

1 Book and Quill

8 Lapis Lazuli

2-4 Iron Ingot

2-4 Gold Ingot

10 Apple

1 Saddle

1 Empty Map

8 Spider Eye

12-20 Bread

8 Honeycomb

16-24 Melon Slice

8 Glow Ink Sac

4 Pumpkin Pie

1 Shears

4 Golden Carrot

8 Slimeball

8-10 Leather

2 Nautilus Shell

16 Coal

4 Prismarine Crystals

1 Banner with pattern (Masoned, Indented, or Flower)

1 Turtle Scute

4-6 Emerald

8 Prismarine Shard

16 Book

18-24 Brick

4-8 Copper Ingot

4-8 Iron Ingot

12 Raw Gold

8 Rabbit Hide

6 Rabbit's Foot

12 Wall (ej. Cobblestone Wall)

3 Metal Door (Iron or Copper)

3 Metal Trapdoor (Iron or Copper)

6 Iron Bars

10-20 Glass

20-30 Glass Pane

12-24 Scaffolding

10 Brick Block

12 Stone Slab

12 Decorative Stone

12 Deepslate

14 Sandstone

2 Block of Coal

4 Dried Kelp Block

3 Block of Raw Copper

3 Block of Raw Iron

3 Block of Raw Gold

12-20 Hay Bale

4-10 Bone Block

12 Concrete

12 Packed Mud

12 Mud Bricks

2 Cake

1 Wolf Armor

1 Nautilus Armor (Copper, Iron, or Gold)

20-40 Torch

12 Copper Torch

8 Sea Pickle

8 Lantern

1 Table (Cartography, Fletching, or Smithing Table)

1 Beehive

1 Blast Furnace or Smoker

1 Grindstone

12 Bookshelf

12 Chiseled Bookshelf

1 Cauldron

4 Trapped Chest

2 Copper Chest

1 Note Block

10 Flower Pot

1 Lightning Rod

1 Bell

1 Stonecutter

12 Resin Brick

3 Armadillo Scute

6 Rail

1 Minecart

12 Redstone Torch

8 Metal or Stone Pressure Plate

1 Observer

1 Redstone Repeater or Comparator

1 Hopper

1 Dropper or Dispenser

1 Crafter

1 Piston

1 Loom

4 Banner

1 Smithing Template

2 Decorated Pot

8 Podzol

8 Mycelium

12-20 Clay

1 Bee Nest

1 Frogspawn

Rare

2 Common Loot Bag

1-2 Uncommon Loot Bag

1 Lava Bucket

1 Axolotl Bucket

1 Tadpole Bucket

5-10 Firework Rocket

2-6 Bottle o' Enchanting

1-2 Eye of Ender

3-6 Ender Pearl

2-3 Potion

2-3 Splash Potion

1 Trident

2-4 Nether Wart

1 Diamond Hoe

1 Diamond Horse Armor

1 Iron Armor Piece

12-24 Cooked Food (any)

1 Spyglass

1-2 Music Disc

3 Rabbit Stew

1 Suspicious Stew

1 Sword (Iron or Damaged Diamond)

8 Amethyst Shard

32-50 Arrow

2-4 Chorus Fruit

12 Lapis Lazuli

8-12 Iron Ingot

8-12 Gold Ingot

1 Golden Apple

1 Explorer Map

8 Golden Carrot

1 Recovery Compass

1 Heart of the Sea

10 Quartz

8-12 Magma Cream

12-20 Prismarine Crystals

2 Banner with pattern

4-8 Diamond

8-12 Emerald

10 Firework Star

2 Disc Fragment

2 Echo Shard

1 Enchanted Book

2-4 Phantom Membrane

5-10 Fermented Spider Eye

1 Clock

12-16 Glistering Melon Slice

3 Block of Copper

6 Block of Quartz

5 Prismarine (Block, Bricks, or Dark)

3 Slime Block

3 Honey Block

3 Honeycomb Block

3 Resin (Block, Bricks, or Chiseled)

1 Lodestone

10-15 Concrete

10-15 Glazed Terracotta

1 Damaged Mace

8 Wind Charge

1 Harness

1 Diamond Nautilus Armor

1 Brewing Stand

1 Anvil

1 Enchanting Table

1 Copper Statue

1 Jukebox

2-4 Redstone Lamp

2-6 Sea Lantern

1 Conduit

1 Breeze Rod

3 Block of Redstone

2-4 Daylight Detector

1 Sticky Piston

4-6 TNT

1 Smithing Template

1 Trial Key

5 Obsidian

3 Crying Obsidian

8 Coral Block

2-4 Froglight

1 Dried Ghast

Epic

2-3 Common Loot Bag

2 Uncommon Loot Bag

1 Rare Loot Bag

1 End Crystal

2-4 Eye of Ender

2-6 Potion

2-6 Splash Potion

1 Hoe (Diamond or Netherite)

1 Armor Piece (Iron or Diamond)

26-48 Cooked Food (any)

1 Damaged Elytra

1 Damaged Sword (Diamond or Netherite)

12-24 Tipped Arrow

2 Golden Apple

1 Enchanted Golden Apple

1 Totem of Undying

1 Dragon's Breath

1 Shulker Shell

10-20 Diamond

4-8 Popped Chorus Fruit

2-4 Netherite Scrap

1-2 Enchanted Book

1-2 Netherite Ingot

3 Ghast Tear

3 Blaze Powder

1-2 Blaze Rod

2-4 Block of Iron

2-4 Block of Gold

2-4 Block of Emerald

2-6 Lapis Lazuli Block

2-4 Purpur Block or Pillar

1 Mace

1 Netherite Nautilus Armor

1 Ender Chest

1 Mob Head / Skull

1 Beacon

1 Heavy Core

2-6 End Rod

1 Smithing Template

1 Ominous Trial Key

1 Vault

Legendary

2-3 Epic Loot Bag

1 Armor Piece (Diamond or Netherite)

1 Elytra

1 Netherite Tool (any)

2-3 Enchanted Golden Apple

1-3 Totem of Undying

1-2 Nether Star

5-10 Netherite Ingot

4-8 Block of Diamond

2-5 Block of Netherite

2-4 Shulker Box

1-3 Silence Armor Trim

Nether

1-3 Rare Loot Bag

5-10 Nether Wart

1 Golden Tool (any)

1 Golden Armor Piece

1 Warped Fungus on a Stick

1 Music Disc (Pigstep)

2-3 Golden Apple

8-16 Golden Carrot

12-24 Nether Quartz

10-20 Magma Cream

2-4 Netherite Scrap

8-16 Nether Brick (Nota: este es el ítem)

4-8 Ghast Tear

5-10 Blaze Powder

10-20 Glowstone Dust

8-12 Glistering Melon Slice

4-8 Blaze Rod

8-16 Blocks (

Nether Brick Wall

Nether Brick Fence

Nether Brick Fence Gate

Nether Brick Stairs

Nether Brick Slab

Nether Bricks (Nota: este es el bloque)

Chiseled Nether Bricks

Nether Wart Block

Warped Wart Block

Shroomlight

Crimson Nylium

Warped Nylium

Netherrack

Soul Soil

Magma Block

)

6-12 Block of Quartz

5-10 Bone Block

12-20 Soul Torch

1 Soul Campfire

1 Respawn Anchor

5-10 Glowstone

1 Rib Armor Trim

4-8 Ancient Debris

1 Dried Ghast

LootBags