^^^I'm not good with numbers, but sturgeon's law accounted for, you'd be hard pressed to find a console with 80 games one considers good.
I don't have as many genesis titles as snes, but I do have a fairly long list of games on the console I like a lot.
Some personal recommendations, off the top of my head:
Phantasy Star 1
Phantasy Star 2
Phantasy Star 4
Elemental Master
Rocket Knight Adventures
Contra: Hardcorps
Castlevania: Bloodlines
Troubleshooters 2/Battle Mania daiginjou
Alien Soldier
Shinobi
Shadow Dancer
Shinobi 3
Twinkle Tale
Undeadline
Splatterhouse 3
Alisia Dragoon
MUSHA
Comix Zone
Monster World IV
Gunstar Heroes
Thunderforce 3
Thunderforce 4
Eliminate Down
Herzog Zwei
Forgotten Worlds (not as good as the almighty arcade edition, but still great)
Ghouls and Ghosts (ditto, though much more accurate, almost perfectly)
some of these are super expensive to get in the flesh (or jp only), so I recommend giving them a shot on emulators if you're getting into the console. You could get repro carts though, which are all fine and dandy.
There are some other classics which I haven't played yet so can't recommend in good conscience (Growlanser, Ghostbusters, Ristar, that one srpg in the Shining series, etc.) but yeah, lots of good stuff on that console to dig into. I also have a few guilty pleasures which are kind of questionable games, but that I enjoy none the less like Mamono Hunter Yoko, Arcus Odyssey, Granada, Jewel Master, etc. which may also be worth a look.