Within this paper, we present a novel routing algorithm capable of providing not only truly intermodal routes but also coming up with route alternatives. These route alternatives feature different route and mode choices while still optimizing the same objective function (e.g. travel time). We therefore, provide a first presentation of the next generation routing service, which are fundamental for the introduction of Mobility-as-a-Service in the passenger sector or synchromodality in the freight transportation sector. We finally provide a showcase of motorhome routing where the full potential of the presented routing algorithm is shown.