I believe I have Resident 2 (for the PS1), 5, 6 (both for the PS3), and just Resident Evil (for the Switch) which would you recommend?
I will admit, I have not seen many Sonic games in garage sales myself
. The best luck I've found is Sonic Rush. But from my experience, and you can use this advice for anything you're looking for not just Sonic, is to keep looking. Go to your local thrift stores (that's how I got Sonic 2 and my Sega Genesis), garage sales via Craigslist or your newspaper, and keep looking. My greatest find in a garage sale was this bunch of 3DS, Gameboy, and PS2 games. I got the Devil May Cry Trilogy, Fire Emblem (GBA), Omega Ruby, Alpha Sapphire, Miitopia, and other games in that sale for a single dollar each. Most of the time, you won't find much (I've been to a lot of garage sales where I come in and come out within minutes
), but when you do, you could strike gold.