The first would be Pensacola Bible Institute, which is located in Pensacola, Florida. It is founded by Dr Peter Ruckman. You can reach out to them via the book store that the church runs.
The second would be The Bible Doctrine Institute (TBDI) whose president is David Peacock. The courses are by correspondence only.
The third would be Ashville Baptist Institute, by Andrew Sluder and Randy Keener.
The fourth is Lighthouse Bible Institute which is a ministry by Pastor Chad Reece.