LIVE THE DREAM!
Get Paid to Play Baseball
The answer to that is you don’t. To be placed on a minor league team in a major league system, you must first get signed by the major league organization. So as far as minor league tryouts go, major league baseball tryouts are what you need to find.
Alternatively, independent leagues—professional baseball leagues in North America that are unaffiliated with MLB—conduct their own tryouts. You can learn about independent league tryouts here.
Be aware that it is very difficult to get signed directly out of a major league baseball tryout. Typically these events are used by scouts to find young players with pro potential, whom they will watch and evaluate in anticipation of a future First-Year Player Draft.
If you’re serious about pursuing professional baseball as a career, consider purchasing “Live The Dream; Get Paid to Play Baseball.” This book will arm you with the knowledge, top to bottom, to maximize your chances of playing pro ball!