Hello Beisbol,
I must admit, in initially reading the post I thought this was clickbait or one of the posters that's always pulling everyones legs - maybe it is... A highly academic junior touching 90 with an exit velocity above 100, should already have some buzz assuming they've been impactful on the field.
As for advisors, the kid was sitting 92-94 as a juco freshman and I had no idea what an advisor was (your future agent and someone who's going to get 5% of your kids signing bonus is what they are - but it's a handshake agreement). When the kid hit 97, that's when people started showing up, asking to be an advisor and wanting to help.
I think some college coaches have advisors they will recommend, but it's always best to get lots of references. My son's agent, is his former 10u hitting instructor - it's a small world, and before you think that's silly, he's also Judge's agent and really great person.