@Toxic_Flange I use #lazy as the plugin manager and am very fond of it.
Now, onto the plugins: #TreeSitter of course, #NVimCmp for completion with #LuaSnip for snippets, #LspConfig and #Mason for easy-as-hell-config®.
There are also color schemes, I personnaly use and love #kanagawa.
You can have a look at what I use here if you want: https://gitlab.com/pcoves/nvim/-/blob/main/.config/nvim/lua/plugins/init.lua
Be sure not to copy paste as my setup might not feet your needs.