I also wonder what you are looking for?
In my view, to enhance your own clitoral stimulation, nothing works as well as just a standard bullet. They are like remote controls with a wire which attaches to a plastic bullet which you hold on your clit. They are AMAZING and have lots of settings and add ons you can buy.
They are hard for couple play though as you have to hold the bullet in place, and there are wires.
Cock rings are fun and often have vibrating options, but more for him than you as it's hard to keep your clit on the vibrating bit long enough to come.
Dildos- gosh they really do come in all shapes and sizes. Some you could get just for him to use on you, and others could be used both vaginally on you, and anally on both of you.
There are also smaller anal probes to get you or him or both of you used to the sensation, or beads, or prostate massagers for him...
Really, what would you like to experience / be enhanced? Can go from there.