External USB wired/wireless numeric keypads

Looking for a compatible external USB wired or wireless numeric keypad that works with Ubuntu 20.04 on a laptop that does not have the expanded keyboard or even a “FN” numeric keypad that won’t interfere with “keys” the “FN” keypad may occupy.

2 Laptops(HPs) have expanded/full keyboards with their own numeric keypad, 1 has “FN” numeric keypad(ASUS clamshell) and 1 doesn’t even have a “FN” numeric keypad(Thinkpad).

Suggestions welcome.