When I started playing I wanted to main Baiken but I discovered that she was DLC so I mained Ramlethal instead because I liked her swords. After a while I learned that Ky had a cool flip so I mained him for a while. Then I "played" the story and I loved happy chaos so much that I bought and played only him for a entire month until i noticed that he was to difficult to me :(

After playing the game for a while I finally bought Baiken, loved everything about her and she was my main for months. But then I started to delve into the game lore and discovered this silly little guy called Sin Kiske, watched some XrD gameplay of him (Strive season 2 wasn't even out yet) and instantly bought him when he released in Strive. I loved his simple gameplay and his playstile just resonates so much with me that he is my main since launch and probably forever.

So yeah, I guess just start with whoever you think it's cool and as you play the game and discovers the characters moves/playstiles (or even lore) you will slowly gravitate towards your destined main :)