I actually had an idea to literally make a hub for RPs - you can still do them in creative, or if not a hub, maybe a widget you can obtain by doing a command in creative that say, gives you a compass. You can do /rpboard (example) that gives you a compass.
Inside are players heads (rp owner's heads), if you click on them it takes you to the rp OR sends the owner a teleport request.
Also, to put your RP in the /rpboard widget-compass, you do /rp setrpboard [Rp label] - the rp label is what the rp will be labeled as in the compass/widget, (example: Hs, Town, Camp, Powers, etc).
If you want to edit that, (example: you now only need boys) you can do /rp rpboardedit [Rp label]
And once you've finished advertising altogether, you do /rp rpboardexit
DONE. BOOM