I could use a decent Rust IDE. I can't believe I'm saying this, but the VSCode plugin for Rust seems to be the best there is at the moment, way better than the JetBrains plugin. This cannot be the last word on that.
Which editor that is doesn't really matter. VSCode is probably easiest, but Neovim, Kate, LiteXL, Lapce, Emacs, kakoune, helix, really pretty much all of them should work decently well.