Most Mustelidae are reasonably social animals - a friend once posited that having to deal with social relationships leads to more intelligence (allowing for whatever you care to define as intelligence!).

If what you want is a pet, definitely go for a ferret. They're considered to be one of the most social of the genus, I believe. They've been domesticated a long time. Apparently (wiki), for about 2,500 years. Which, with a 7-10 year lifespan, is long enough for evolution to be affecting them, if you see what I mean. Look at dogs & cats - they've definitely modified over the centuries, even if you ignore Homo Sap trying to breed for certain characteristics.

Mink aren't pets. And mink are rapacious bastards if they get loose. A perfect example of human stupidity is AR activists releasing mink into the wild from farms {rollseyes}. Great for your conscience, great for the mink, thank you for fucking up the eco-system for miles around, you stupid... *ahem* Ferrets haven't been domesticated for as long as dogs & cats. But they've been domesticated plenty long enough. I've no personal experience, only anecdotal, but they're social, playful, energetic*, friendly animals, with a long human-involved history. Mink aren't. If I were interested, I'd go for a ferret!

*Apparently (wiki), they sleep for 14-18 hours a day, the lazy little bleeders - dawn / dusk is their time. But they are energetic & inquisitive little sods (the Greek name apparently means 'little thief') - you've either got dead calm or hurricane! ;-)