In this modpack you can chose a origin and a class.

Classes

Archer: your projectiles are more accurate; you are slowed less when using a bow
Beastmaster: animals you tame gain permanent extra hearts and damage; when you drink a potion the effects also apply to nearby tamed animals
Blacksmith: tools and armor crafted by you provide small benefits; you can repair tools and armor more efficiently, both in an anvil and via crafting
Cleric: you can double the duration of potions; you are better at enchanting
Cook: food you craft provides more nourishment; you gain extra XP from cooking food in a smoker
Explorer: you start the game with 9 empty maps, a compass and a clock; you don't exhaust from sprinting
Farmer: bone meal is twice as effective when used by you; crops sometimes yield twice the loot when you harvest them
Lumberjack: crafting planks from logs gives you two extra planks; you cut down whole trees at once when you use an axe
Merchant: when you trade with villagers, their trades aren't used up; wandering traders give you special offers
Miner: you break all stone blocks faster; you don't exhaust from mining blocks
Nitwit: you're not particularly good at anything. :)
Rancher: when you breed animals, they sometimes have a chance to produce twins; animals killed by you have a chance of dropping twice as much loot
Rogue: your name is never visible through walls; you enter stealth (making less sounds and dealing double damage from behind) after sneaking for 10 seconds
Warrior: you deal +1 attack damage with every weapon; you are slowed less when using a shield

origins

Miner +Can break stone without Pickaxe +Extra reach -slower in water -consumes hunger fast
Megalodon +Aquatic Creature +Gills +About 3 blocks tall -Can't breath air -Bigger hitbox
Silverfish +small +Can break stone without Pickaxe -water kills them -can't hold shield
Endermite +small +Can break stone without Pickaxe +can teleport -water kills them
Cowsain +can run fast +scares creepers -Weak arms -Vegetarian -can't hold shield
Giant +Acrobatics +extra reach +strength -slower in water -Hates Pumpkins
Floran: +Can grow plants at the cost of some food. +You are satiated by being exposed to sunlight. +You deal 2 more damage when wet. -You take twice as much damage from fire. -Biomes that are too hot or too cold will give you slowness. -You can only consume Honey Bottles.
Inchling: -You are 4 times smaller than a regular person. You have 5 less hearts, 0.5 more attack speed, 0.25 less attack range and 1 less build range. +You are immune to thorns and velocity based damage +You require less food to keep going. +You are able to climb up any kind of wall, not just ladders.
Piglin: +Golden tools deal extra damage and golden armor has additional protection. Golden equipment lasts much longer, but non golden and non netherite equipment breaks faster. Netherite armor gives a small speed boost. +Piglins do not attack you unless provoked. Brutes will still attack on sight. +You deal 75% more damage with crossbows. -Your natural spawn will be in the Nether. -When outside of the Nether, you zombify, becoming undead and immune to fire, but slower. -Your diet is restricted to meat, you can't eat vegetables. -You have 2 less hearts of health than humans. -You are afraid of Soul Fire, becoming weak when near it.

And the others that you can look at https://www.curseforge.com/minecraft/mc-mods/origins

this modpack also has some game perfuming mods

SMP Origins and classes