[lgtx]

Finnish railway company VR also has a nice live tracker https://www.vr.fi/en/live-train-tracker-map

[anttisalmela]

There's also https://junatkartalla.com/ which includes cargo trains.

[popcalc]

This has got to be the nicest one I've seen in the thread so far!

[smcl]

It helps that in areas where there's a high concentration of trains on the go they just put a single pin that says "N trains" - the ones that have one pin for every train are a bit busy and can be sluggish