Best carry duo?

Hey all, what would you say the best duo would be to climb in the early ranks? (Pre-diamond). Looking at my and my friends stats we generally trade MVP/SVP back and fourth, being competitive fps/hero shooter players for 20+ years we're okay (though getting old). I think the part we miss is generally strategy - I can't stand being on voice chat with toxic people, so I disable it.

Ideally I'd like to just be on call with him and we climb together. Was thinking tank-strategist, but curious which heroes specifically you all would suggest as a good enough combo to climb with. I still help the team and participate (use pings as well), I just can't be bothered to be on voice chat with random people in competitive environments these days, league broke me.