Welcome, with this good weather I would spend your time having as many test rides as you can, it will show you the different types and their pros and cons, also it will put a BIG smile on your face.
If you are only going to use the bike in France I would try out as many different bikes over here to find what type suits you, then when in France find a dealer over there that can supply, service and maintain the bike you like.
DO NOT RUSH IT.
Take your time and try as many models and types you can.
Before you invest a large amount of money!
Check it out you may find a model half the cost and just spend an extra £10 or 20 on a different saddle or tyres?