It is difficult to decide on a wine for someone else especially when you don’t drink it yourself. I love a Rioja but I’ve tasted some awful ones. When we were on holiday in Canada I asked in a restaurant for a red that was fruity and a bit sweeter and they suggested a Californian one. I had heard that they weren’t good wines so said oh no. So they brought me four glasses with a little bit in each and I picked one that to me was much nicer than the rest. I was gobsmacked when they told me it was a Californian wine! I’m hooked on the Barefoot wines now. They’re lovely but I’d be wary of giving them as 1. There IS a lot of snobbery around wines and 2. They have screwtops and that’s another thing that seems to be looked down on. But the more expensive doesn’t always mean the best! I bought a Chateauneuf-du-pape as my DH liked it. Not the cheapest but it was for having at Christmas dinner, and I didn’t like it so haven’t bought it again. If you’d rather give bottles, then I’d go for a middle of the road wine pricewise but in a pretty bottle. It’s the thought that counts and although a voucher means they get to pick, I think it’s nicer that a bit of thought has gone into a gift. Pol Roger champagne was mentioned earlier and if you want to spend that much then their champagnes are lovely. My daughter has bought those for me. She chooses a Demi sec as she knows I like a bit sweeter and they’re so nice but I’m really not normally a champagne fan. I think it’s highly overrated. Good luck though! 🥂🍾