I don't think this was the first package to use the tree idea, but `avy-goto-char-timer` is amazing and is new since the first time I tried it. After activating goto with a key press you type as many characters as you like to get where you want. Often you can get straight there if it's something unique, but if not then it goes to the tree. It's amazing how quick you get at typing "def" or something to get to a Python function definition, for example.

What I love about functionality like this is it's completely generic. It's just text. I don't need any lsp support to get me "go to def" or something. I can open a file in a language I've never seen before and use the exact same interface I'm used to to navigate around.