This is to keep track of all the RP bases and Sub RPs.
This is so big that I probably missed some. Feel free to add them!
Main Studio: https://scratch.mit.edu/studios/25243892/ (This is the main studio for regular RPing)
TNS News Studio:
https://scratch.mit.edu/studios/25357981/ (Get the latest updates!)
https://scratch.mit.edu/studios/25433482/ (Keep track of everyone's relationship status)
The Quidditch Match!: https://scratch.mit.edu/studios/25250321/ (For RPing with the Quidditch match event)
The Mordor Morguls Base: https://scratch.mit.edu/studios/25250124/ (For the Mordor Morguls Quidditch Team)
The Buckland Cheetos: https://scratch.mit.edu/studios/25250419/ (For the Buckland Cheetos Quidditch Team)
Great Wolf Lodge:
https://scratch.mit.edu/studios/25271649/ (For... Familial issues. :P)
Malfoy Manor McDonalds:
https://scratch.mit.edu/studios/25414051/curators/ (To get a bite.)
Ungoliant's Lair Shopping Mall:
https://scratch.mit.edu/studios/25414015/ (To get.. another sort of bite)
https://scratch.mit.edu/studios/25354521/ (Cute little corner store)
https://scratch.mit.edu/studios/25496100/ (Narnian headquarters)
The Death-star: https://scratch.mit.edu/studios/25520199/comments/ (Exactly what it sounds like)
https://scratch.mit.edu/studios/25594540/ (Resistance Headquarters)
Middle Earth- Analysis, Debate, Discussion:
https://scratch.mit.edu/studios/25093880/ (You can find some really old chains here, but it's not really used for RPing anymore as that's not it's purpose. It's where it all started though, so you might want to read up!)
Other chains can be found on profiles and the like.