Jazz Pack is put together with a focus on a almost Vanilla style experience, just with a lot more to do. It's got tech, magic, and even mob mods, as well as some specific compatibility tweaks introduced using CraftTweaker.

Some notable additions and changes are Twilight Forest with it's progression order disabled and Time Control used to double the length of days and nights.

Here is a mod list

[TFB] Anthro Origins
Abnormals Delight
Alex's Delight
Alex's Mobs
Allurement
Antique Atlas
Antique Waystones
AppleSkin
Aquaculture 2
Architectury API (Fabric/Forge)
Atmospheric
AutoRegLib
Autumnity
Bamboo Blocks
Berry Good
Blood Magic
Blueprint
Boatload
Botania
Buzzier Bees
Caelus API (Forge)
Chisel
Citadel
Cloth Config API (Fabric/Forge)
Colds: Wandering Trader
ConnectedTexturesMod
Craft thge Totem of Undying [FORGE & FABRIC]
Crafting Automat
CraftTweaker
Create
Create Crafts & Additions
CreateTweaker
Curios API (Forge)
Curios Delight
Decoration Delight
Decorative Blocks
Decrotive Blocks modded compat
Drip Sounds (Forge)
Dynamic Surroundings
Eidolon
Eidolon Recipes
Engineer's Decor
Enviornmental
Fairy Lights
Farmer's Delight
Farmer's Delight Compats
Farmer's Delight Integration
Farmer's Tea
Fast Leaf Decay
FasWorkbench
Flywheel
FramedBlocks
GeckoLib
Glassential
goblin Traders
Honey Expansion
Immersive Engineering
Immersive Petroleum
Infernal Expansion
JEOTweaker
Just Another Rotten Flesh to Leather Mod
Just Enough Items
Just Enough Keys
Just Enough Professions
Just Enough Resources
KleeSlabs
Kotlin For Forge
KubeJS
Malum
Mana and Artifice
Moonlight Lib
Morpheus
Mouse Tweaks
Mowzie's MobsNeapolitan
Nether's Delight
Obfuscate
Occultism
Occultism KubeJS
Origins
Paintings ++
Patchouli
Pehkui
Personality
Placebo
Potion Master
Pyromancer
Quark
Quark Oddities
Repurposed Structures
Rhino
Savage & Ravage
Serene Seasons
Shutup Experimental Settings!
Silent Gear
Silent Lib
Silent's Gems
Simply Tea!
Sophisticated Backpacks
Sound Filters
Spice of Life: Tonino Edition
Stoneholm, Undergound Villages
SuperMartijn642's Config Lib
SuperMartijn642's Core Lib
Supplementaries
Tea Kettle
The Endergetic Expansion
The Irregular Chef
The Twilight Forest
Time Control
Tool Belt
Transparent
Trash Cans
Trash Slot
Travler's Titles
Twilight Decor
Twilight Delight
Twilight Tweaks
Upgrade Aquatic
Useless Sword
Valhelsia Core
Valhelsia Structures
Vanilla Recipes+
VanillaTweaks
Waystones
When Dungeons Arise
Wilds
Yung's API
Yung's Better Caves
Yung's Better Dungeons
Yung's Better Mineshafts
Yung's Better Strongholds