More Biomes [FORGE] - 1.21 UPDATE! Modpack 1.20.1–26.1.2

Then don't wait any longer and get into More Biomes, which apart from adding hundreds of new biomes, adds a lot of mods perfectly compatible with them, and that will make your game experience unbeatable.

That is to say, More Biomes not only adds biomes, it adds much more content that will surely not leave you indifferent.