Did GT let him graduate in 3 years?
Try web searching for “[college name] transfer credit” to see if they have any articulation listings that show specific courses from other colleges being counted as equivalent to the college’s own courses. If so, then compare with any major or general education requirements there are at the college. Listings of this type are most common from community colleges to same state public universities.
If the course is not listed, then most colleges will only evaluate after you matriculate, so you will not know what subject credit you get before deciding which college to matriculate to.
Many schools have a program on the transfer page where you enter the school you are attending and will tell you what the equivalent is at that school.
My daughter did this when transferring a math class from Metro to Wyo. Just put in the Metro course number and the Wyo course and credit appears. For upper division courses, there might not be the same class offered at both schools, or the title may be slightly different. For two upper division history classes, she had to submit the syllabi to the history dept at Wyoming and they had to approve the transfer. We weren’t concerned that she wouldn’t get credit but were worried that they wouldn’t give credit at the upper course level. Luckily both were accepted at the same level (she needed one more upper level course to graduate).
Some of the schools you are looking at may have this program but not recognize the courses from a community college or Metro, and then you’d have to petition for the class to meet a particular major requirement or core requirement.
Whether you can graduate in 3 years may depend more on your major than the number of credits you have. Course sequences play a big part in timing of graduation.
Why are the OOS flagships better for you than CU of CSU?
“Is there anyway to know how many/which credits the schools will take before I decide on where I want to go or do I have to get in touch with someone in admissions at each college specifically?”
You are going to have to get in touch with someone in admissions at each college specifically. You are getting great general advice here on these boards, but you have an case with an unusually high number of DE classes and should expect to do research specific to your personal circumstances.
As other posters have suggested, you will likely find your own in-state publics to be the most receptive to making the most of your credits so far, and even then you may be required to take a minimum number of credits on campus and/or in your major.
If you’re interested in going to PA school then research freshman direct entry programs. Many of the colleges who offer that are 5 year programs and that alone shaves at least a year or two off college plus the competition for PA schools is fierce. It’s quite a bit easier to get in early at a less competitive school but has a solid program than applying for a masters program at OHSU or wherever along with hundreds of other top notch bachelors holders. You also need time doing direct patient care before starting the professional phase of any PA program. Gannon and Duquesne are two such programs. With your good stats I would hope you’d get some good merit money. Good luck!