I love Ben Huffman/Sterling Vermin’s classes, which currently include the pugilist, magus, scholar, and spiritualist.
Mage Hand Press is also one of my fave 3PPs, and they have several amazing classes: warmage, Warden, witch, alchemist, craftsman, investigator, and gunslinger. They’ve got several other classes that they’re refining right now as well: binder, channeler, shugenja, martyr, marshal, and glitch.
And of course En5ider has put out several classes. My favorite among them by a long shot is the Noble.