What is the best way to add HANDS FREE vibrations to the Eupho? Vibrating cock ring?

I have a Helix Syn V. I love the vibrations on it, but right now the Eupho seems to be hitting the spot a little better for me.

How can I incorporate vibrations with the Eupho in a way that is still hands free?

I am thinking maybe a small vibrating cock ring which can loop around the base/tabs?

Tenga makes something called a “Iroha SVR” which looks like it would suit, but no idea about the vibe level.

Note: I have a lovense edge 2 and the vibrations on that are probably too strong for my liking. Whatever I end up using would ideally have softer vibrations like the Helix Syn V.