There is one (who I didn't forget about). She is Karin, and uh... she's not that great at healing. I mean, idk, maybe it's because I am weak, but compared to the other healers it doesn't seem like she gives all that much, even in arena. There is also only one healer in the wind department, but he's actually good, so...

The healers of each attribute (In parentheses, how well they heal in my opinion, but take it with a grain of salt)

Earth: Shizune (good), the Ino normal (decent), swimsuit (No info), GNW (good)

Water: Tsunade normal (okay), 5th hokage (great), Sakura normal (great), fuku (awesome), GNW (awesome), Kabuto (good)

Lightning: Mabui (meh), Cee (meh)

Wind: Jigokudo (awesome)

Fire: Karin. Freaking Karin (no comment).

Danzo reminded me about Kurenai. Kurenai also exists (meh).