You are in luck. You will find lots of matches including:
Alabama. Big Southern flagship, with lots of school spirit, big sports and fraternities/sororities. Nice honors dorms. Check out Randall Research Scholars, Blount Scholars.
UT-Dallas. Not a typical Southern school. Hardly any Greek life, and only DIII sports. Instead super-strong chess and e-sports! Smart and nerdy vibe. Strong Math, CS, STEM in general. Terrific honors dorms. Dallas is a fun city and an airline hub.
UCF. If you want this one, and are out-of-state, you have to be in the first 40 NMFs to commit. Good engineering, including Aerospace. Big school, happy students.
University of Tulsa. This is a small private university. The new president is committed to building a critical mass of National Merit students (estimated 20% in the incoming freshman class.) Lots of mentoring and other great opportunities. Tulsa is a fun and hip city.
NJIT. Near NYC for internships. All sorts of strong tech programs. Over 70% male if that matters to your student.
University of Oklahoma. Is your student interested in meteorology? If so, no better school than this.
University of Maine. Or maybe your student prefers pulp and paper technology? If so, no better school than Maine. Plus lots of great outdoor winter activities.
Really, the list goes on. Many strong programs for STEM students. Others can jump in I’m sure.