I'll give an obvious example anybody can dream about (or do, it's not that hard):

Bourg d'Oisans, France

1) Good rides (of course) in varied terrain (at least some real climbing), well maintained low-traffic roads
Awesome road rides of every type, they even have a replica of the Alpe du Zwift!

2) Local bike shop(s) that rent/service road bikes (name one?)
https://www.cyclesetsports.com/fr/co...velo-alpe-huez

3) Nearby airport or other transportation (where do you fly into?)
Fly to Grenoble, train or bus to Bourg d'Oisans (~1 hr).

4) Good food and accommodation, not too expensive
It's a ski resort, might be pricey for that kind of room.

5) Stuff for your family to do while you're out riding (semi optional)
Festivals of some kind nearly every week, farmers market, bric-a-brac, shopping, non-cycling sports.

6) Drivers who won't kill you.
Again, this is France: drivers are more likely to cheer you on than run you off the road. Many roads (Including the Alpe d'Huez) are closed to motorized traffic on specific days of the week.

Cheers,
Jon