Double+ Reaper teams on KotH definitely works (at least on console) and if anyone knows a counter to them I'd love to hear it.
Junkrat, the thing is you literally have to be a suicidal player
That's what I do, most Reapers lose their shit when my Junkrat is aggressive
General pub Junkrat just stay mid and lob like buffoons and just getting the hit marker to appear to tell them they are lobbing grenades in the right direction
For me as a Reaper that's almost a free kill cause they go tone deaf to their surrounding
Now when I'm Junkrat and Reaper around, you have to have situational awareness of dropping your trap near you and bait him
I make my Junkrat lobs, Reaper shorty/steps/laugh trigger me that he is near
Either my trap catches them, which triggers their shadow, 85% of the time they retreat, I chase, get kill
15%, rush in, lob grenade direct hit, absorb damage to myself, just need 1 grenade to land then quickly combo wombo off to tripmine, which funny enough sends you flying away, killing them in the process
Pharah has the distance, reach to clip Reaper health and chase him away, most Pharah fly directionally that gives away where they will land
Good Reapers know how to chase and tag Pharah out of the sky
She always has to have high vantage point or importantly know how to shoot her rockets from afar yet trigger the explosion diagonally to where the Reaper is (almost shooting in angle, slicing), her knockback helps her a ton, yet most will not use it unless they knock someone off
Mei is just BAE, she wrecks Reapers
Health enough to survive the Onslaught, freeze, headshot combo works wonders on Reapers
The wall can be a deterrent, to block off a Reaper retreat, I use it when a Reaper goes 1 v 1 with my Mei, just as they know they lost 50% health and are like 2 seconds away from Icicle death, they shadow retreat, ice wall those fucks, they have to waste 2-3 seconds going around, losing their ability
Freeze, kill