All 3 of those are small and pretty timid gobies/blennies. I wouldn't expect any aggression between them especially in a tank that bigooohhh...my wife is looking for a fish that will "sit on the rocks"...this might be a good option, glad you posted it!
She loved the Hawkfish, but we also have Shrimp and I've heard that's a terrible idea.
We're putting in a Link's Goby & Court Jester Goby soon, do you think a Tailspot would have any issues with those two in a 90 gal?