There is a series of videos on You Tube taken from the cabs of locomotives running routes in Germany. Some are hours long, but they show every minute of the route, including time spent sitting in stations, and often show the name of stations they pass through. The nice thing, you can get a good picture of what a station looks like before you arrive or change trains.
For instance, this video is from Kempten to Buchloe. Buchloe is often the change station for connections from Munich to Füssen, and people wonder what the change is like. The train in this video comes into the station at about 41 minutes. You can clearly see the track (Gleis) numbers, as well as the location of the stairs to the tunnels and how far apart the stairs to adjacent platforms would be in the tunnel. You can also see that there are elevators on the platforms, as well as that 2 and 3 are cross platform as are 4 and 5.
If you are searching for a small station in Germany, it would help if you know what line it is on, ex. Frankfurt-Würzburg.
On You Tube type or cut 'n paste "Führerstandsmitfahrt" (for ü on a PC, hold down the alt key and type "0252" on the numberic keypad), then type the two end points of a route separated with a hyphen, ex "Führerstandsmitfahrt Frankfurt-Würzburg".
If you go onto the Bahn schedule website and find a connection to that station, open the details and click on the number of the train. That will show the times at each station for a train on the route (hint: all stations on that route are shown for RBs because they stop at all stations. Faster trains do not show all the stations because they don't stop there.) Then use the times to find the station you want.