Stud this question is without an answer. People who have hard throwing sons will argue that velocity is everything and you can not play D1/pro if you throw less than high 80s. People who have soft throwers will argue the opposit.
Hone your skills and velocity will not hold you back.
I can give examples on both sides of the coin. a good pitcher needs 3+ good pitcher needs to have pitches he can throw for strikes and keep the batters off balance. I watched a DH University game last night . The best pitcher on the field was throwing 76 mph. He had a no hitter going into the 7th. Threw a complete game winning 7-1 allowing 3 hits. The second game was pitched by a guy who graduated from a 4 year Southern school who was hitting 91. He also threw well but has to be pulled after 4 1/3 innings as he became wild and walked 3 batters in a row. He won the game 6-4.
Both pitchers did well and on a team compliment each other. Show you can win and no one will care that you don't throw hard.
A RHP I have followed graduated from a 4 yr D1 southern school was signed by NY Yankees . He was sent to a A team and at the end of the season was moved up to AAA. Not even a full season and moved up. He maxed out at 82 and pitches around 78-80.
Why do people set limits on themselves ? Learn to pitch, work hard and the only limits will be when you can't go any further.