About 10 years ago, at around the same age as you are now, we decide to downsize and find a home accessible to the Pyrenees.
We had been living for 10 years with an amazing view of the Pyrenees “from the Mediterranean to the Atlantic coasts” as the immobilier described it, so we had lots of experience of the area.
We wrote down our criteria and asked an imobilier friend of ours to keep an eye out for something suitable. Our criteria, which you may or may not find useful, were as follows:-
View of mountains naturally.
The stretch of Pyrenees was important to us. From Toulouse to the Mediterranean was too windy for us (vent d’autan?). I hate wind and it makes any weather seem worse. The stretch west of Toulouse is protected from winds from the South and West by the mountains and any easterly wind is greatly reduced. In fact, the Wright brothers chose Pau as the site of their first flying school in Europe for that specific reason.
We did not want to be in the mountains because it is cold in the winter, the combination of tourists and small windy roads in summer seemed hazardous, being overtaken by super fit cyclists on declines is positively terrifying and stuck behind them on inclines somewhat irritating. (TDF has a lot to answer for). East- west routes are difficult.
The western end of the Pyrenees is exposed to the Atlantic weather, zillions of tourists in summer and high prices.
The area north of the A64 (running roughly parallel to the Pyrenees) has a more temperate climate and provides excellent communication so within 10KM (ish) of that route would be ideal
We wanted a rural but not isolated location
We wanted to be outside of the Toulouse commuter region because of too many people, too much traffic and high prices yet we wanted to be accessible to the city so no more than say 2 hours away. Access to Toulouse was important for the international airport and the best hospitals (in my opinion) in Europe. At my age this proved to be an important decision!
The very last criteria we gave our immobilier friend was somewhere near a secret lake containing large carp (although this was somewhat meant to be tongue in cheek)
Within two weeks he phoned to say he had found something that ticked all the boxes (apart from the last one!). The very first property he showed as we bought!
My advice FWIW is to write down what is important for you and try one of the house hunters that operate in the area you are interested in.