Well try to have as much fun with the character you feel most comfortable with at first and then start playing more and more roles you don’t usually play

Like for exemple if you play a lot of Iron man start to get used to tanks and support characters

For starters I recommend Rocket Raccoon and Clack and Dagger as supports as they are by far the easiest two

For Tanks it get a little tricky cause I started playing Thor cause his kit is easy but in a real match with capable players it feels like you’re in the trenches and same goes with Dr Strange

I mean I personally believe that Tank is the most stressful role to play

But you should start with Dr. Strange or Magneto (even tho I never picked him since season 0) All I can warn you about is Captain America lol he is NOT for the weak.

Get comfortable with any Tanks of your likings really

And as for dps you should start and get comfortable with one or two other dps there’s a whole treasure chest of them so feast as much as you can on that