I've made a server as well, with some help from Elite
It's vanilla RR with no extra mods, No Oceans.
IP is shimblaze.strangled.net
Just an FYI: The IP won't always be running the RR server, as the IP is shared with a personal friends-only 1.15.1 vanilla server, read the server MOTD to see whether it's RR or vanilla
If the MOTD is "Blaze's Rival Rebels Server" then the server is running RR
If the MOTD is "TPP 1.15.1 server hosted by Blaze" then the server running is my whitelisted friends server running vanilla 1.15.1.
If the server says it's running RR, but you can't join, or want to play on the RR server if it's down or the vanilla server is up, let me know through Discord. (Shimmering Blaze#9306)