Willy, I'm sure there are some HA D1 programs that would take a RHP who throws 90, even at this late date. Patriot League comes to mind. Also Furman, Davidson, Richmond, William & Mary, and VATech might be possibilities.
Questions:
Can you tell us why you're specifying D1? Athletic scholarship? Prestige? Draft prospects?
How far from FL is acceptable?
Without getting into specific, how much is cost a factor?
What fields of study are you interested in?
Did you know that you can go JUCO for one year and then transfer to D1?
Have you consider a gap year to work on pitching and admissions? That could be at prep school, no school or part-time at JUCO without using a year of eligibility.