As to the issue of engaging the interest of a college program and even receiving scholarship money a HS underclassman should consider the following:
1.Best to play on a high visibility HS program or least on a team that competes against high visibility programs. If your school routinely finishes in the cellar or plays less than competitive opponents...
2.Find your way on to a team with stud players. This might be a Connie Mack or Babe Ruth team, regional or local. Baseball folks tend to gather where the best players play.
3.Buy your way into one of the “showcase” programs. There are any number of these who encourage players to fill out rosters for games and tournaments for a fee. Most will have at least a few “A” players getting a look from the local Baseball talent evaluators.
4.Maintain at least a 3.0 GPA and work hard to achieve better than average SAT scores. Better yet is to maintain your school/league's Scholar-Athlete standards.