BK,
Just went through this (D1 pitching transfer) with my oldest. Looked solely at smaller, Southern D2 and D3 programs. For him (and us), getting a solid education in an environment with smaller class sizes was a priority. We wanted a small school (student population) environment overall, with a good graduation rate, career services, etc. And we wanted a school that was focused on undergraduate education, so that left off many larger schools.
Baseball wise, we looked at competitive D2 and D3 conferences where programs were nationally ranked, players were getting placed in good Summer leagues, and where there was a track record of players drafted. He also wanted good baseball facilities and excellent strength / conditioning facilities.
And he wanted nice weather so the focus was in the South and West.
We used US News and Forbes ranking lists to sort schools and come up with his list. With the above requirements, his list of schools was small. No AR or WV D2's fit our requirements, though we had an AR D3. His final D2's were in FL, TX, and TN.
Would D3 be a consideration?