[pantaloony]

The NES and SNES classics come with excellent controllers (side-by-side then with the originals and it’s hard to tell the difference) and aren’t hard to “hack” to run an expanded library. Disk space is limited but you can fit about as many games as a person’s realistically likely to ever play on them.

There are adapters for the controllers but I’ve owned a couple over the years (to use the Wii Classic Controller over USB) and they barely work to begin with, then break after a bit, it seems. Dunno why.

[throwanem]

Switch Pro Controllers are a bit spendy, but once you tape mod them to reduce D-pad mishits, they're as good as (first-party, non-counterfeit) Wii Classic Controllers ever were - I always favored those for Super Metroid speedrunning, and happily used their newer counterparts for the same purpose until my arthritis got to the point where it's no longer comfortable to speedrun with any controller. In particular, I've found Switch Pro Controllers to work well with the Raspberry Pi 4's onboard Bluetooth. So that might be a workable option, if you don't mind spending a little more - that said, I've had the older of mine for something like five years now, and it's stood up very nicely so far.