Hi there and welcome to Taborea,
I think you will find role players in every server, but I have been playing in Reni and Govinda so far, both are PvE servers. In Reni I’ve only met two role players and in Govinda I’ve met quite a lot of them.
If you decided to try Govinda, you should join RP private channel, it’s mostly for OOC conversations but a great place to look for RP partner/teacher as you’ve mentioned in your post. Feel free to whisper/pm me too when you are there, I’ve been playing for half a year or so, would be happy to help you out.
Cactaceae – Govinda