I wanted to add new vanilla-friendly blocks to my game, but I don't know how to make mods so I made a resource pack instead. Any blocks that are replaced in this pack are ultimately copies of existing blocks (to put it technically, what I'm replacing are duplicate models). And each new block is designed to stay in-theme with their vanilla function so that using them in Survival isn't too jarring.
This is only a Beta version of this pack so it's not finished yet.
I plan on adding more block textures and models to it later for the full version, but I'll have to come up with more ideas first which might take a while.