Depending on the era of NJT you are modeling, these are always choices as well:
Obviously 3 of the four are my creations and one project isn't nearly done yet. What I call the C34-7H is in back pieces as I need to rebalance the trucks so the weight was is the two powered wheels. The E60 is two Williams shells combined with no power, but I have a BDO shell that sits on a SD60 chassis that will look much better with the correct side frames when I get to that project.
The ALP44 is stock Atlas. MTH released the F40PH in NJT too recently.