Treevamped

Treevamped is a mod that focuses on overhauling trees and forests in Minecraft! The mod was made with gameplay in mind, meaning that trees on average are a lot taller than normal, making it much easier to traverse through them either on foot or horseback, while also providing much more resources for your big projects. However, care was still given to make each tree visually appealing while retaining that good ol' Minecraft charm! [Screenshots use the Distant Horizons mod and the Programmer Art Fix resource pack]

What this mod does specifcally is modify the Configured Feature JSONS for each tree. Some trees were simply made to generate around 3 to 4 blocks taller, so that the leaves generate high enough that the player shouldn't be constantly bumping their heads on them, or getting their horse stuck. Other trees were edited further through their Trunk Placers and Foliage Placers to change their appearance altogether. In some biomes, the vegetation distribution was also tweaked, so that forests have a wider mix of small to large trees. Lastly, this mod also adds a couple of its own Configured and Placed Features, those being much larger trees that generate rarely in their biome, like a Fancy Oak tree that's bigger than normal, or an occasional Mega Pine in a regular Taiga. If you're tired of Vanillas tiny forests then this is the right mod for you :)

Do note that as this is a mod, the Fabric API is a dependancy. Given the new growth spurt a lot of these trees had, I'd heavily recommend a tree felling mod/datapack such as Chopt by ItsJustMeChris to make life easier, but that's up to you.

I'd also personally like to shout out Better Trees by EMD123, JeanBetterTrees by jeancrafteo and Taller Forests by TheKingOfNerds for being the primary sources of inspiration behind this mod!