a VirtualTourist member
On the day I would like to go to fussen and already reserve the hotel room, the train ticket already sold out. Are there other public transport to go to fussen? Or another train station
Check www.bahn.de for German railway. From where are you travelling? I cannot imagine train tickets sold out unless you are trying for a train with reservation.
Please note the spelling: Füssen or Fuessen (but not Fussen)
Trains in Germany cannot be sold out. You can always buy a ticket.
In regional trains, like the ones serving Füssen, you can even not reserve seats. And it will be also no problem to find a free seat, esp. not when starting in Munich.