If you want trains on standard tracks, try Little Logistics. (plus Little Contraptions for Create support)
The mod has basic train cars that a player or mob can sit in, chest cars, fluid cars, and (fuel- or power-based) locomotives. There's no hopper car, but if you're doing trains, you probably didn't necessarily want that. The mod also includes barges and tuck boats for "trains" floating on water. The individual train cars are compatible with custom rails from Create or e.g. Botania (sending an entire train over a spectral rail is quite a thing to behold), and the mod comes with additional rail options, although its automatic routing is a bit sketchy when the train network extends over a larger area.