These are just based on my experience through soloq and watching pro games/streams. Feel free to give me more recommendations as you wish. Enjoy!
Top: Gnar, Lissandra, Renekton, Jarvan IV, Jax, Maokai and Riven
-Wildcard: Volibear and Yorick (He counters Gnar hard)
Jungle: Jarvan IV, Lee Sin, Fiddlestick, Pantheon, and Nunu
-Wildcard: Sejuani and Master Yi
Middle: Fizz, Leblanc, Orianna, Morgana, Annie, Azir, Ezreal, Jayce, and Zed
-Wildcard: Cho’Gath, Lulu, Vel’Koz, Kennen, and Katarina.
Marksman: Corki, Caitlyn, Ezreal, Jinx, Lucian, Graves, and Sivir
-Wildcard: Tristana, Ashe, Kalista, and Kog’Maw
Support: Braum, Thresh, Leona, Morgana, Janna, Nami, and Sona
-Wildcard: Lulu, Zyra, Soraka, and Taric
Bonus: The Combos:
1. Yasuo’s fetish: Malphite, Lee Sin/Maokai, Yasuo, Sivir, and Zyra/Janna
2. Team Yordles: Gnar/Rumble, Nunu/Amumu, Veigar, Corki, and Lulu
3. Team Hoppers: Kassadin, Kha’zix, Leblanc, Corki, and Braum
4. Team Antarctica: Trundle, Sejauni/Nunu, Lissandra, Ashe, and Braum
5. Team PewPew: Jayce, Lee Sin, Xerath, Corki, and Morgana
Got bored at work and since I’m on my break, might as well be somewhat productive. That’s all for now.