Johnny,
There are so many ways to do this. If you were my son, we would be starting with the academics and then focusing on athletics. Birdman14 and Pedropere have selected this method as well, and given you excellent advice in terms where to start. I will add my two cents here, but I would start with the College Select process that pedropere outlined. That would be my top level search process, and I would continue to come back to it. As birdman14 suggests, HeadFirst is a great event & list of schools to consider. I'm most familiar with HeadFirst, as my son got a bunch of interest generated from that camp two years ago. It was very worthwhile.
You want to focus on the baseball search. Since you have self evaluated your talent to low D1 and below. Let's start there. You can look at Boyd's which ranks the 301 D1 schools in the county. From those RPI and ISR rankings you can focus on schools 150-301 to determine if they have business & economics, and a suitable geography for you.
http://www.boydsworld.com/. You can then cross reference these with the about mentioned College Search engine. I would also go to
http://www.d1baseball.com/ for more detail about teams, & conferences.
I would also go to
www.d3baseball.com to look at whatever schools interest you by geography. You can then cross reference these with the about mentioned College Search engine.
I would also think about your top level goals, and strategy. For example, your strategy could be to "use baseball as a means to transfer into the best business & economics school possible. You want to play D1 baseball west of the Mississippi". Think long and hard about this, because it is going to be 2 years of your life. You also have to factor in your academic workload with what the athletic workload will be. Make sure your have a workable balance there, because you are coming into a new program as a junior.
As you think things through and gather more information, please feel free to post or PM me. You have a lot of folks here who have been through this and may know something about the baseball program you are considering.
Let us know how you progress.