Go visit all the gliding clubs within driving distance. The best bet is a club where several members also have young families.
Me, I suspended gliding when son # 1 was on the way as weekends away from home were not on.
With a young family, you may want to find how the club accommodates young children underfoot and what local opportunities are available to them and your wife. Do be aware that small children must be carefully supervised an any airfield.
Our club has a swing set and sandbox and is considering putting in a swimming pool (there's at least one Canadian club with one).
You can also base a caravan at the club and spend weekends there.
You do want to find a club where students get an opportunity to fly at least twice a day.
Talk to the other students on the field and find out how many flights they are getting in and how many months / years it takes to get to solo -- for license double that time.
Motorgliders are useful for teaching landings as a student can get in half a dozen or more in an hour's time.