There are plenty of “easy” choices when it comes to roleplay, though do mind that pretty much no matter what class you pick, you will probably have to look into some lore about said class, and even look further into the lore of the race and see how that works alongside the class you have chosen.
There is the PCU who got plenty of cool guild choices, and make really cool events and cross over rp between the guilds. They are very likely to also help you out with any questions you got about lore and just rp in general. Heres a link to their thread