I have had a couple of emails from people whose fingers shrink and swell from day to day, meaning their rings are either too tight or too loose. I have fingers like that and I have this on several of my rings. You don’t feel it at all and you never have to worry about your ring getting stuck or falling off. It adjusts to your finger as it swells or shrinks.
You can also have the following adjustments made, although these are more permanent and have to be removed by a jeweller. Some rings cannot safely be resized so these can be good solutions.
I once bought a ring with speed bumps on an auction and they were pretty easily removed by my local goldsmith. They were actually not uncomfortable. One good thing is they stop a ring from sliding, particularly if you have a big solitaire ring where the weight causes the ring to fall to the side.
Then of course, you can find hinged rings for arthritic fingers
I have tried ring noodles in the past and they worked well, but I was always bothered by the hygiene aspect of them. I imagined all kinds of gunk getting in to them. They are pretty cheap though so you can use a new one every week if you wish. You can buy them in different widths, but they are not available for very broad bands.