I don't know how much "traction" these official forums get. But for the person who's a roleplayer (experienced or wannabee), who's stumbling around in the dark wondering where all the other rpers are, this post is for you.
First off, we're not going to discuss *how* to roleplay in an MMO - there's hundreds of articles/videos/posts on just this subject already out there. Nor are we going to go into a debate on ESO server mechanics and its pros/con regarding how "rp-friendly" it is. That also has been discussed ad infinitum elsewhere.
Join an RP website or find RP-related forums.
There’s several stricly RP themed sites out there, with TESO-RP.com being the most prominent. On these you can post your character bio, fan fic, chat with other rpers, see what events are happening, and engage in thoughtful debate on subjects such as lore, roleplay techniques, crafting, and even gameplay mechanics (since most of us -also- enjoy playing the core game!).
On more general TESO websites, you’ll have to dig a little deeper to find RP content and information on guilds/events/characters, but it’s usually there in subforums.