This Overwatch Tier List will show you the best heroes to play in Season 24 for climbing fast.
Echo has been nerfed a notch since release but is still a solid pick for any competitve map and deserve S Tier in this tier list.
Widow is a solid A Tier, but is an S Tier in steady hands. B-C Tier if you're not an amazing aimer.
Doomfist is an amazing pick for Control maps such as Ilios, Nepal and Busan. Having a solid Doom on your team in control maps will put him at S Tier.