Fast answer
The best DPS Tatari for most players are Voltfawn, Dewgrub, Punchimp, and Taptail.
How to choose the right one
- choose Voltfawn for high-end carry damage and control
- choose Dewgrub for longer fights and better Water coverage
- choose Punchimp for reliable Rock damage
- choose Taptail for focused boss pressure
The real DPS rule
Do not choose a carry in isolation. The best DPS line is the one your support and lane control actually allow to stay active.