I am looking for the support of a Fabric version (particulary 1.16.1 and above)
Because of the Sodium mods which is pretty much Optifine but 10 time better.

I am totally aware that you would probably need to first get Better Hud in 1.13.2+ Forge , so no pressure.
I am just hopeful you could maybe look into it in the near future.

I am looking forward to it!

Because of the Sodium mods which is pretty much Optifine but 10 time better.

I don't know about that, I just tried the mod, and Optifine on 1.12.2 performed much better