Best other supports to learn?

I’ve just gotten into OW2 after leaving near the end of OW1 and I’m wanting to learn other supports for games when I can’t play mercy, either because I’m paired with another mercy main or mercy is just really not ideal for the team comp/situation. I’m hoping to learn 2-3 other supports that are good in team comps that mercy isn’t usually in so I have some flexibility and/or that pair well with mercy in case I’m with another mercy main. Ideally these would be not super aim reliant since my aim isn’t great. I’m not super aware of the meta and just finished placements at plat 1. Hoping to climb back to masters as that’s where I was in OW1, but I’m sure that will take a while if/when it happens.