Ohio River towing company recommendations

Hi, I have a buddy talking to a few of the Ohio River towboat companies. They seem less commonly discussed than the big Mississippi River, etc. companies and typically push coal among other things. Ingram, Marquette, ACBL etc. do get up there but a few companies are almost completely Ohio and PA rivers like Campbell, Crounse, ACNR (formerly Murray Energy), AEP, and Carlisle & Bray.

First, any recommendations or comments on these companies (not looking for dirt, just best options, employment stability, etc.). Any other good names I missed?

Also, how is the coal industry holding up as far as shipments go? I hear a lot is going export now bc of Asia and the war in Ukraine but am hoping that the decline in coal shipments isn’t continuing apace, especially with many power plants going natural gas.