I don't know which account is tied to Steam

Greetings, I am facing a serious problem. A few years ago I bought a game on Steam, played it and bought a subscription (apparently on the game's website). Now I've decided to play SWTOR again, but I've completely forgotten which account I was playing on. I have no idea what exactly was the mail, the account was tied to Steam and I would like to know - can I find out at least Display name or Email based on my Steam account? Or at least in the store settings to find previously linked accounts? Thank you!