Allira
We've got a ring pull opener. It works quite well, although I can easily break a nail just easing the ring up first.
Ours is like this one, made by Culinare. Available at many retailers. Other makes available too.
I have had one of these for ages and don’t know how I’d manage without it.
I had the same problem with opening tins at first but solved it by taking a teaspoon and easing the ring up a little, just enough to get the bit of the opener underneath. Never fails and easy on arthritic fingers. I know because I have got those too!