Silver 3 jungler looking for duo partner

we are in need of a jungler for 5's. Plat mid/ gold 2 adc / S2 top and s2 supp. What champs do you bring to your role and what are your top 5?

I can play more of the fighter-type junglers, but ive been meaning to learn the tanks. I usually play Shyvana, Yi, Xin, Udyr, and Diana