There's nothing wrong with loving popular anime. After all, a lot of it is popular for good reason. That said, sometimes it's nice to branch out a bit, and try out some great non-mainstream anime instead. Yes, you can still enjoy Tokyo Ghoul and Sword Art Online, but if you're hungry for something else, perhaps try expanding your horizons. There's good anime no one has seen out there, and not all of it can be found on Crunchyroll.
The best obscure anime come from all genres. Are you in the mood for a slice of life anime about a high school music club that isn't K-On? Try Tari Tari. What about an emotionally wrenching seinen thriller about a group of boys in a juvenile detention center? Rainbow: Nisha Rokubou no Shichinin is a great choice. Do you want to watch a robot try to become an idol? Try Miss Monochrome.
There are great under-the-radar anime for every taste and preference. If you want to see some good anime not a lot of people have seen, check out this list. Who knows, you might even find a new favorite.