I use 1.14.2 until I find an Optifine that is capable with Forge 1.15.2, and I use the Faithful Resource Pack, which saves me time on making a dedicated resource pack, because even the default blocks can have many uses, and look fine as is for almost any type of project. Also Chunky is working on a 1.14.2 version as we speak since they have a blog set up for it.