For awhile I have followed a blog called the man in seat 61. There is no question in my mind but that it offers the best practical information on train travel, worldwide. I recommend it enthusiastically. Here is the link
In those pages you will find descriptions of virtually any train or train system in the world with suggestions on how to best navigate them gained from his real world personal experience. I wish what I am doing in these pages could come close to what he provides his followers in terms of comprehensive practical advice and tips.
If you decide to take up travel on the ground as a favored way to get around, or you just want to see what possibilities are still out there for good old fashioned, or modern, train travel, then paste this link onto your whatever page that you use to find whatever stuff.
Let me know how you like it.