It's the first week of December and I believe all high academics schools have an application deadline on roughly 1/1.
Where have you applied and how did you select those schools? Since, I presume, you chose those schools for specific personal reasons, I'd reach out to the baseball coaches of those schools and send videos. Most high academics don't fill their rosters and have room for qualified walk-ons; of course, in D3 all players are walk-ons and a coach would jump at a chance to discover a late bloomer.
With your SAT (and I presume matching grades), I'd never roll the dice on baseball and attend a school not on your academically acceptable list. So, contact the coaches of the schools to which you are applying.