i usually use Naruto, Hinata and Kabuto. i think u can replace Kabuto with shizune

form like:
Hinata *x **
** ** **
Shizune WM Naruto

For Now.

Sasuke GNW Kiba *x
Main Hinata *x
*x *x *x

3
2
3
2
2 Talents.

This doesn't need pet just use Tonton for 1 more hit and swap to Chameleon once you farm him later.

For Later.

Tobi GNW Kiba *x
Main Hinata *x
*x *x *x

3
2
3
2
2 Talents with Kyushoku Deer.

This is the best f2p water main formation until you draw some rare ninjas and even then many * to it, it has many good match ups.