Here the most worthwhile stuff, in my opinion anyway, from what you can find on Crunchyroll. There is probably some more you could find. But these are my recommendations. There is a lot of good stuff not included because they don't have it. So it'd probably be a good idea to branch out to other methods eventually. At which point, I'd be happy to recommend some more.
http://www.crunchyroll.com/hunter-x-hunter
http://www.crunchyroll.com/barakamon
http://www.crunchyroll.com/jojos-bizarre-adventure
http://www.crunchyroll.com/gintama