In this post, you will find a list of all the best mods to totally change the world-generation in Minecraft 1.17.1! The mods will either totally overhaul the world-generation or add new features to existing world-generation. Biomes O’ Plenty for example, will replace vanilla world-generation and add a ton of new biomes. All whilst maintaining the feel of vanilla Minecraft.
Biomes O’ Plenty (1.17.1): https://bit.ly/3eSValy
Dynamic Trees (1.16.5): https://bit.ly/3qA8uSC
Terraforged (1.16.5): https://bit.ly/35eEEaE
Valhelsia Structures (1.17.1): https://bit.ly/3Fcx4Nb
BetterNether (1.17.1): https://bit.ly/3opbazJ (Fabric)
Tropicraft (1.16.5): https://bit.ly/3onpSqY
Check out these links if you’re wondering how to install Forge modloader for Minecraft 1.17.1 or how to install Fabric for Minecraft 1.17.1.