Kuudere is a character who's quiet and stoic (and not in a cute way) on the outside, but sweet on the inside.
Yangire is yandere without the dere part; a cute girl where anything can turn her psycho, not just love troubles.
I have no idea what Goudere means.
Goudere is a character who is normally boisterous, but when they start to open up they show their dere side.
GET AWAY FROM ME!AAAAAAAAH♥Purple Squid-chaaan!There she is...!It's the best...♥ I want her to cover me with it more...!♥Purple Squid-chan's roller ink really does feel good...♥