Lots of good stuff...
There are even some Valentine-themed options in there, so no need to spend too much!
So far, my faves are:
Slope Fest *all weekend* (Southie), White Dynomyite/Muck & The Mires/etc (Great Scott)
If I had to pick one, my heart is with Wolf's 22nd Annual Mardi Gras Ball (Somerville)
Lizard Lounge Poetry Night 18th Anniversary
More to come...