Jeans help please

[bluebellation]

I desperately need new jeans but I really can't work out what style/fit/length I need.

I'm in my 60's, dress fairly classically but think I manage to look 'up-to-date' . 5'7", generally a size 12, hour glass (much smaller waist than hips, so trousers always a bit of a problem).

I like a high waist, and definitely not skinny jeans, as my thighs are a bit chunky. I would wear them with flat brown leather ankle boots or black suede ones with a small heel.

So, clever and stylish people - should I go straight legs? slim? mum jeans? and what length should they be? In the good old days, they had to cover your shoes (or your flares had to sweep the ground ) but I know that's not the look nowadays. Any recommendations of brands would be good too. Although I don't normally like M&S, I have got jeans there in the past because the waists seem to suit me, but I couldn't find anything in my local one the other day.

[bluebellation]

I saw them Konkatenate but, as usual, there were no 12s. Why M&S can't get their stock ordering right I don't know - the popular sizes sell out within days of getting instore; why don't they just order more of those sizes? I'm also a bit put off Mom jeans because they look like the ones I wore years ago and it seems a bit like going backwards. I'm afraid that, at my age, it would just look as though I was still wearing jeans I'd had 30 years ago!