Pharah / Bastion* / Rein / Mercy
*even though I literally never get to have a good time with him anymore
However I tend to be more useful as 76/Mei(who I actually play somewhat decently)/Winston and Ana. Though this might be outdated info since I recently came back to play a bit of OW, so we'll see
speaking of which I need to get those last 30 coins for Pharah's winter skin