Assuming you’d have to re-buy Minecraft, I’d.say at least give Luanti a try. At the bery least, Its free.

That said, personally, I had too many issues with it. Specifically, I had performance issues, found that the graphics that looked worse (subjectively) and were much harder to modify, and kept running into roadblocks that were annoying to fix, like having to figure out how to grant myself permissions for a bunch of different actions.