Drag and Drop Sort Custom Entities I am looking for a simple way to sort my custom entities through a drag and drop interface and display them in the custom order in my views.

The best way would probably be to add a weight basefield to the entity type and let the drag and drop interface change the weight on each entity through ajax. Are there any examples on how to do that?
You can created an administration page views with you custom entities and to sort it you can use use the DraggableViews module. You would have to create another view to display your entities.