If you have dominant air superiority (including against small fpv drones) a trainer turboprop with basic machine guns would probably be a very easy quick and cheap way lol.
Something like a Super Tucano
https://en.m.wikipedia.org/wiki/Embraer_EMB_314_Super_Tucano
Not for contested airspace, more bulk destruction of a wave of drones that have penetrated deep behind your frontlines and ideally need to be downed with cost effective means. The easiest way to lead a target with a machine gun is when you are on your targets 6 lol. I imagine one of these could chew through an obscene amount of drones in one flight.
I bet there are already unmanned variants of super tucano too.