Question about VooPoo Drag X 18650

[Mooseknuckle]

I am interested in getting the VooPoo Drag X 18650 , but prefer RTA's. The tank that comes with it is a magnetic PNP tank. Does anyone know if there is a good replacement RTA tank that works with this magnetic pnp system? Preferably 4ml +...Thanks

 

[Aliraonz]

Original voopoo RTA is 2 ml, Soulmate RTA is 3.5ml and Auguse draw RTA is 4ml last one looks like could be more MTL.