Kang is Boss in any TT crew, nuff' said.
Railworkers are solid and cheap with an above average damage potential and some good staying power.
The monks have their uses, but it depends on how you play misaki.
They're great for holding your backfield or camping objectives, I've never used or needed more then one tho..
Defensive stance, immune to conditions and a (self) heal make them pretty tanky.
Mei can use about everything TT to some efficiency, even so her themed stuff works best.
But things like archers, dawn serpent and komainu are also nice. Archers for sheer utility (hide him behind kang), srpent for the burning (2 words, shovel faster) and komainu, which you will want for Yan lo are also constructs (and cool).