What characters are there thats OP

The two best characters in the game rn are mei and reaper. Doomfist if you're really good but most people aren't unless they've been playing a long time (which you'd know and wouldn't be asking this question if you've had).

If you feel like reaper is too basic mei is good. Reaper just eats tanks alive. But a very simple playstyle. Mei can cancel and counter ults like nobody's business.