Is there a Sonitus fx download that works on mac/protools?

I don't think so. Is there a particular reason you need the Sonitus fx? As nice as they are, I should think that most stuff that comes with ProTools is relatively equivalent in function and quality. 

I can not find a delay that gives the nice wide "Stereo" feel that Sonitus delay does for a pro tool buddy that likes mine with Sonar. Nor can I find any other options for my Sonar X3. Would also consider other options to give that nice stereo feel as if vocals or acoustics were all around your head. True voice overs also work well but sometimes the Sonitus delay is a better option

I like Waves H-Delay. FabFilter Timeless is another good one though it's not for the faint of heart. I guess feature wise Sonitus is kind of in between those.
SoundToys Echoboy is another good one if an iLok is no objection. None of them are free but all of them have free demos. 

I'll add that I too most often ended up at the Sonitus delay before I had those. It's unassumingly good.