Hi, and welcome to O!
Sounds like you're an Alco lover, and you're probably going to want look for...
- Lionel TMCC & Legacy RS-11s
- K-line / Williams RS-3s (Same molds; K-Line has TMCC, Williams do not have command)
- Most of the MTH Premier RS-11s (early ones have cast on grab irons)
- MTH Railking RS-1s (Not their RS-3s)
- Atlas Master RS-1s & Trainman RS-3s
Most of these have been done in some NE roads, including Lionel & MTH Premier NYC RS-11s (Albeit in lightning stripes), Atlas NYC, Rutland, Green Mountain, VMR and New Haven RS-1s, Atlas New Haven and B&M RS-3s, Williams CN RS-3s or a K-Line New Haven RS-3.
I hope this helps... YouTube has a lot of videos on the above if you want to hear sounds. Here are my K-line NYC RS-3 and Lionel TMCC RS-11s...
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Thanks, and good luck.
- Mario