Another tip: lots of useful characters are only an option press away. You can find them by viewing your keyboard [1], which is easy if you have you input source on your dock. Some of my favorites:
⌥k = ˚ (degree) ⌥e a = á
⌥p = π (pi) ⌥e e = é
⌥5 = ∞ (infinity) ⌥e i = í
⌥d = ∂ (delta) ⌥e o = ó
⌥8 = • (bullet) ⌥e u = ú
⇧⌥9 = · (middot) ⌥n n = ñ
This is one of my favorite features of macs and it astounds me there's nothing close in equivalence for the other platforms. The recommendations are always 'Install a keybinding app and add all of them as key bindings', as if that wouldn't take hours of tedious labor to do.
[1]: https://support.apple.com/guide/mac-help/use-the-keyboard-vi...