Hello, I came onto this and have been using it. I think that I could help a little. I was working on the "--TODO: Extend this to cover all razor highlights" that is in rzls.nvim\lua\rzls\razor.lua. I think I got all the regex ones and a few other small ones that were pretty easy working.

I know a little about neovim plugins, very little about LSPs but I am learning. I work full time on C# applications and have for a while. If you would like some help with this I am happy to contribute when and where I can.

If you would like I can fork this and then send some PRs when I am done that way or if there is another way you would like help I can do that.

Thanks for the wonderful plugin and work that you have done so far.