So many things.. A couple of thingies I've been fond of are my couple of Roland AC60s. They're transistor acoustic guitar amps, not too expensive and quite good. They got phantom power, feedback elimination and good I/O.
I've also used them as monitors and even as PA on a couple of occasions. They're loud enough for a party or wedding. Though not exactly made for that, it works better than you might expect when coupled with a sub. I put them on stands and they got lots of I/O options for how you wanna hook them up to stuff like a mixer, a sub or even just together. I find them to be very versatile which is something I always appreciate.