Good anime shows to watch

I want to know if you guys will enrich me. I want to know some really good anime shows that I can watch due to the fact that I have no idea where to look for em so if you can gimme

mawaru penguindrum
tenga toppen gurren lagann
working!!
usagi drop
hanasaku iroha

www.myanimelist.net

go there, search through anime by genre.  I've given you the resources, but I'm not going to do it for you.