G Scale Electric Trains Have A Electric Train Transformer. I Was Going To Get A Better One.?

Have a electric train transformer. I was going to get a better one.? - g scale electric trains

It is an old Lionel set. Basically, you need maintenance, but not one that can take a long Hanlde and more powerful engines that another plan, what I should do. I know that Lionel is no longer on the market for G-scale is, but that other companies would be compatible processors? Could you detail?