This relates to people with aspergers, as well as people who don't.
First where not to find a spouse:
In those two places you are only looking at what the person looks like (or what they seem to look like). Physical attraction can be good, but only if there is something beyond that keeping a relationship together (shared intrest, values, etc.).
THE BEST PLACES TO FIND SOMEONE WHO IS QUALITY
Place of worship
Community service events
Refered by someone you know
With these last three ways to find someone, you are finding more refined people. People who show that show kindness towards others, people who are checked out, you won't find horrible things out about these people, and people who show loyalty.
On place of worship it doesn't matter what religon you follow just go to your local church, or synogauge (if you are ready), let them get to know you, and then ask if they know anyone who they think could be a good match for you.