Innokin T22 Prism tanks are cheap and work well for MTL. They have a tight draw, much like a cigarette. There's only one available coil (1.5) and there's nothing fancy about them, but they work, are top filling and the coils are cheap and last a good time. That being said, the Nautilus coils are probably easier to find.
Innokin T22 Prism Tank
There's also a T18 if you prefer 18mm
Innokin T22 Prism Tank
There's also a T18 if you prefer 18mm