There are so many it'll take a long time to send u all.
If you want to look up the author's sns. U can just google "the manga u want + baka updates". They explain the manga's status and all along with the artist/author's pages.
Just click on their names and u'll see links of their accounts on sns.
If u dont find anything its most likely that they dont have one.
*But bruh spoon has one............. everyone has idk...I follow them all on twitter*
Thank you!
You're very welcome :3
Do you guys no mangaka/authors that keep sns?because i also I want to follow them hope you'll help