I had an expensive (well, for a tiny bit of silicone) Enso one at first. It stretched out pretty quick. I then tried a few cheap options from Amazon and now have this one: ROQ Silicone Wedding Ring for Women, https://www.amazon.com/dp/B077CK3KYD/ref=cm_sw_r_cp_api_i_gT5cFbMNJGEVA
I honestly like it way better.