You are a NYS resident with a household size of 2, earning $100,000 a year.
Your FAFSA EFC is probably around $15,000
If you qualify for Excelsior Scholarship, tuition would be free at CUNY and SUNY.
Fees, room and board would run about $15,000.
Can you afford that? OOS publics would not come in under that number, unless your son would get merit of full tuition or more.
He would need high stats for that, and apply to the right schools.