Hi,
well, after Basel, Aigle will seem extremely boring and unwelcome. But if you are here already, it means you've had a preview of what awaits you... depending on whether you enjoy a glass of wine or not, you will find that the Aiglons (the people living in Aigle) open up better after a bottle or two of good regional white wine and might even start to like you if you pay for the bottle they drank with you. From September, the wineyards open their 'carnotzet' (wine cellar) for wine tasting once the harvest has started. Yvorne is a good place to go and meet people. If you want to be part of the community and make friends, the best way to do so is by joining a club, may it be the gym, the swimming, badminton, soccer, whatever (and if you have kids, make them join, you'll meet other parents....) I do not know how long you are planning to stay around but unless you are willing to give a bit of yourself, your time and get invoved in something, meeting others in a town that doesn't have much to offer is tough work. Monthey, close by, has more in terms of activities, and of course the riviera with Montreux, Vevey have a few good things going on as well. Aigle has something for her though: she is close by to many mountain villages (ski resorts and plenty of great summer walks). If it is something you do enjoy, you can register with the alpine club, which will offer cross country, alpine and nordic skiing group outings with different levels of difficulties snowshoes treks and in summer you'll be offered the possibility to discover mountain cabanes through great walks (also ranged in levels of difficulty). Whatever works in other regions to know the people works here as well but in terms of night life, community life, it is not the richer, unfortunately if you stick to Aigle only. if you are willing to move around, then you'll find all you need from Monthey and its carnaval to Lausanne and its night life, concerts, plays, shows, stopping in Montreux for its jazz festival, clubs and bars, Vevey for its city-sized photo exhibit every two years, great museums and buzzing theatre activity, then you might be quite pleased with the life led here... If you plan to still be around by summer 2019, Another event that might interests you and that will definitely make you be part of something much bigger and know people all over the region is to register as a volunteer for the fete des vignerons. It happens only 4 times per century, it is a major, MAJOR event here involving hundreds of people and living that once in your life is something you'll never forget.
you said you travel a lot but the alpine club, for example, isn't the type of club that requires much involvement as you sign up for one outing at a time, whenever your schedule allows it. it might suits your busy life while helping you making some new acquaintances. I really do encourage you to take the time to develop a small network of friends from the region as living in Aigle is not the same as living in Geneva or even Lausanne and if you plan on returning to Basel every time you feel like having friends around, it will get tough on you...I hope this post will help you a bit and if you need more, do let me know!
Anyway, welcome to Aigle!!!