Many people miss out on lsp symbols picker. It is available in helix, zed and similar plugin might exist for neovim. Symbol picker gathers all the code declaration like class, variable, functions and so on. Combined with fuzzy picker you can grep the code declerations very fast. This is efficient when comments pollute the function name you are searching for.

This is an example of symbol picker in helix. The symbols can also be filtered with %kind ___% syntax.