I have thin fingers and can recommend to. Stay away from titanium and tungston. They tend to make those metal types of rings thicker due to the hardness of the metal. I hated my tungston ring, the thickness hurt my hand anytime I used a tool, or had to shovel. So, after 10 years of marriage, I opted to buy a new ring.
So, as far as recommendation, I don't have one. Though, I wound up buying this (ring)[https://www.amazon.com/dp/B076Q7ZDMB/ref=cm_sw_r_cp_apa_i_uHZACb4AQETZV] from Amazon as I no longer care how fancy it is, but it was thinner and looks nice enough.