>>58255002
You can pick most modpacks from prism launcher and be fine, legit download the launcher and click add instance and then search cobble and you'll find tons.

My only thing is that I heavily, heavily recommend Radical Cobblemon Trainers. It adds not only trainers to fight but a level cap and gym leaders/rivals/bad team to fight to raise that level cap. It adds meaning to cobblemon and exploration in general since those rivals only spawn in certain biomes. I also like Fight or Flight which lets your pokemon fight mobs if you turn them on.

TLDR: Just grab a mod pack and then make sure it has radical trainers, other than that I just add a bunch of furniture mods mainly, maybe a car/plane mod to get around easier but you can also just get a mod that lets you ride cobblemon.

Once I started just walking around looking for hoenn mons and scanning shit with the pokedex, I was surprised how much it matched up to modern pokemon. I get the same feeling in cobblemon that I do from playing scarlet and violet when I'm just running around catching pokemon.