http://watch-fullmetalalchemist.com/ whats the best anchor text for my site? This site you get to view the FMA show and stuff
Use as anchor text the keyword(s) or phrase(s) you are trying to rank for in search results. That is the best method.
You can use the google keyword selection tool to find out what are the most appropriate keywords for your niche. https://adwords.google.com/select/KeywordToolExternal