NotBadCosplay - Helps stops the terrible/horrible cosplay blogs. She also does critiques if asked and will do them anon as well. She is a wonderful person that has her own tips. She does a great job of being active and answering questions.
Cosplay-Tips - Shares amazing tips ranging from planning and being in character. They are also open for submissions.
TheLittleCosplayThings - More of a blog where you read cosplay related things, and you think about on how you’ve also keep finding pins around your room months after a sewing project. Great little blog you will find yourself always relating to.
CosplayingWhileBlack- - Amazing blog to look at even if you are not a coloured cosplayer yourself. Filled of many beautiful cosplays. They allow submissions as well of your own cosplay.
I’m missing more amazing blogs but they have not been active in these recent months. But be sure to check out the blogs above!