I've not gone through a winter with this setup yet so can't bring any experience, but I have an Alps trip and Scotland trip planned so decided to get myself sorted and ready.
I opted to stick with 235/55/17 running Conti WinterContact's. I wanted to stick with the softer ride of 235, but also preferred having a matching size spare year-round. I put a Vredestein Quatrac Pro+ on the spare which I intend to leave on all year, it's not got a directional pattern and it's a 3-peak rated all-season so figured that would be a good option year-round.
I picked up a cheap set of 2nd hand Davenport alloys to use as my winter wheels - a lot of people recommend steelies and I might regret this later, but most of our trips won't be super adventurous so cosmetics won me over.
I'm happy with the idea of swapping wheels with season, mainly because I'm fortunate enough to have room in the garage to store a second set. If I wasn't then I'd probably just run all-season tires, a lot of people on here seem very happy with them. Swapping the wheels gives me an excuse to make sure they're not seizing on, as well as rotate them for wear - it's a little bit of hassle, but with the right tools and room to do it it's no big hardship.
For chains, I went with spikes spider - but not used them yet so no idea how they fair. They're bulky to store but seem to go on easy and they look like a low-faff option. Will be interesting to look back in a couple of years and see if they ever make it onto the wheels in practice.