Discord channels only take a couple of clicks to make. The most common types of channels you see in discord groups founded by people in the same rp tend to be -a general chat channel -a channel about the roleplay, questions, lore etc. -a channel dedicated to free rp, specified if canon or not as for how it helps the rp I just find it easier to hop on and quickly say something as opposed to logging on to rpg, going to subscriptions and then typing an ooc post. Additionally if you've ever found yourself thinking "I wish there was more than one ooc tab for (insert reason)" then having a discord could help.