Pink-streaked wrasse!
Beautiful colors, very peaceful, and adapts to frozen/pellet easy. Kind of acts like a sketchball on the tank. He's been very reclusive for the first few months. I would walk into the room and see him out and about, but when I got within 15 feet of the tank he would dart into his caves. He's finally started to come out in the last month or so.
Or my tailspot blenny. Tons of personality, and it's hilarious to watch him put it in reverse to get into his rocks. Both are in the picture below.
Hope that helps,
Josh