Here are a few suggestions for your next trip from Richen(b Eppingen)

In 2 hours, you can reach Frankfurt am Main, Stuttgart, Strasbourg.

In 3 hours, you can reach Basel, Köln.

In 4 hours, you can reach Luxembourg, Dudelange, Munich, Schifflange, Bettembourg, Düsseldorf, Merl, Strassen, Essen, Bertrange...

In 5 hours, you can reach Brussels, Zürich, Paris, Esch-sur-Alzette, Liège, Bern, Anderlecht, Pétange, Luzern, Schaerbeek...