Up and coming fighters you feel are slept on or not known as much as they should be?

I was just thinking about this with the prelims thread and was wondering which fighters you feel are either not known enough and you feel should be or fighters that are just generally slept on.

A good example of this is Dan Hooker who up until recently I feel he was slept on for a while, he's getting the credit now though which is great so he no longer is in this kind of conversation however one that comes to mind for me at the moment that probably should be more known is Cory Sandhagen.

I...

Up and coming fighters you feel are slept on or not known as much as they should be?