some good anime ost suggestions?

so far, these are the ones that are acctually good:
attack on titan ost (awsome)
gotachman (most of them are decent but some are bad)
guilty crown (very good)
durarara! (good solo(s))
fate/zero (>.< gooooood~~~~~)
so any more? i would like something that is not too background-ish (ie - asobi ni iku yo!)
so in general, i would like something to listen when working that makes me hyped up