I mainly use ranger, or some conveniece scripts I've built around ripgrep, ripgrep replace and fd. When i find the file i want I either open it directly to do a small chance or use the fuzzy search in my long running session to open the file.

The only thing I haven't nailed yet is creating files in deeply nested directories.

In general most of the things I used in nvim have now moved back to the terminal which has its pros and cons.

Open the root in helix, use the fuzzy file finder (space-f) for looking up by name path, or global search (space-/) for finding by content.

There are a lot of nice tui s for this, but saidly helix does not support opening new files into an existing session :(

you could try to use ranger or a similar terminal filemanager. it's basically like nvimtree or nerdtree

I use broot :)