I have tried a lot, the three min ones I keep coming back to are jerboa, connect and liftoff. They all have pros and cons and I like each and alternate between them. Liftoff is a continuation of lemur by the way. Lemur was abandoned but someone else picked it up and develop it further, providing frequent updates.
I’m not much af a fighting game person but I would second skullgirls just for the art/music design alone. It has a charm that I really liked.