On our last teardrop, I installed a receiver at the rear for a swing-away bike rack.

We did a 21-day trip to the southwest setup like that and it was too much bounce and weight back there. Even with the swing-away, the bikes were in the way. I don't think that system is a good solution.
With this new teardrop, I installed a receiver just ahead of the tongue box.

The final rig will look like this:

The Thule that I will use folds up so that once we have the bikes unloaded, we can access the box.
That's my plan and I'm sticking to it.
Tony