Here are a few suggestions for your next trip from Göschenen

In 2 hours, you can reach Luzern, Lugano, Zug, Küssnacht am Rigi, Thalwil, S. Antonino, Nätschen, Oberalppass, Steinen(CH), Tschamut-Selva...

In 3 hours, you can reach Basel, Sissach, Lausen(CH), Olten, Liestal, Locarno FART, Locarno FLMS, Como S. Giovanni.

In 4 hours, you can reach Zürich, Milan.

In 10+ hours, you can reach Brussels, Köln, Liège, Aachen.