Welcome to the site. There's quite a menagerie here for you to pick from, and it's quite possibly one of the largest free form RP sites active at the moment. Which means RP styles and quality pretty much run the gamut here.

Hope you find what you're looking for.

If you're a history student, you could glance at the Nation RPs. Not my cup of tea personally, but I peruse them occasionally just to be blown away by the amount of detail people pour into them.