Southern Night is a true determinate according to TomatoEden.com:
http://tomatoeden.com/?45,southern-night
And the plant supposedly only grows 30inches tall!
Of course there's Boronia from the dwarf project thats determinate...
https://www.victoryseeds.com/tomato_boronia.html
And Chocoladnoye-chudo (don't ask me to pronounce it!)
http://tomatoeden.com/?75,chocoladnoye-chudo
Al