Welcome to Tumblr refugees! I second (or third or 57th by the time you get to this far) that this is a great place for RP-- enablemeplz is a great source for some games looking for new members, and fandomcalendar is an essential for things like challenges and fandom specific events. A great prompt comm is fan_flashworks.

Jump in, join comms, and have fun! Hope to see you around!