Agreed with Leeway. The Fire Into Music group is a particularly good place to start. They also have a limited LP that can still be found. Two other recent recordings worth checking out are Max Johnson Quartet (MJ, Swell, Mark Whitecage, Tyshawn Sorey) and Dragonfly Breath (Swell, Paul Flaherty, C Spencer Yeh, Weasel Walter). Both are on Not Two. The former is more straightforward & compositional while the later is full-bore, no compromises free improv.