Most groups leave their discord link/pic at the end of the chapter you can join their discord and there is a staff or apply for position chat/announcements
Join the discord groups (they provide links at the end of beginning of the chapters)
just like what the other peeps said abt the discord links at the credits of some chaps, some scan groups have social media like twitter, tumblr, blogspot, reddit etc(u can just google scanlation group recruitment or smth) and they publicly recruit and you can find how to join by reading the post abt the recruitment and the ways for you to join is usually by emailing them w/ the provided email or joining a discord server w/ the provided link and then just message the one who maintains groups. Just ask if u want some additional info or if ur confused :D
Hellooo I just want to ask on how do I start in joining translation groups. I know how to edit and know how to use some adobe software and I want to join them to edit the translations. I am willing to do it for free cause I want to gain experience... Can some body teach me how do I start or where do I reach out?