There's a lot (´-﹏-`；)
My darling signed in
https://www.mangago.me/read-manga/my_darling_signed_in/
Netkama Punch
https://www.mangago.me/read-manga/nekama_punch/
There’s Netkama Punch and My Darling Signed In. Those are the only two I know.
Try this
https://www.mangago.me/tag/Catfish/
Netkama punch
My darling signed in
Candy man
Love level up
16647
Those are the only five I can remember at the moment. I hope it helps you find what you’re looking for!
This one ?
https://www.mangago.me/read-manga/be_frank_and_strict/
Or maybe this
https://www.mangago.me/read-manga/candy_man/
I'm looking for a BL where the main character catfishes the ml through a video game. He like pretends to be a girl. I read it before but I can't remember the title.