Here's a coach we think you'll enjoy. It includes a few varients, one called the Superbus and another called the Tribus for OMSI 2. The Tribus, as its name might suggest, is a triaxle coach which looks amazing. The attention to detail is impressive, and it sounds great too. There's quite a few interactable features with this pack. There's also an automatic and manual version included to suit your play style.
Credit: EDSONV12, Chris Albernaz, Marcio Santos