Any vibrating butt plug with a remote
I own the B-vibe triplet and the Rimming butt plug, but im sure there are less expensive options out there.
Good for: muscle fatigue, problems with flexibility
Having a remote makes changing the setting so much easier. Not having to contort myself every time i want to fiddle with the vibrations saves me so much energy. Make sure to pair them before you stick the plug in and your set.
I personally love both these plugs, and although they are pricey i feel they are very well made and worth the money. They both have good battery life and strong vibes. The rimming action is also amazing. The controls are also very easy to use on both of them,
Mini review for the rimming plug here