Here are the attributes al-Ghazzali recommends seeking in a prospective wife. (Alchemy of Happiness, p. 96 ff.)
1. Chastity
2. Good disposition
3. Beauty ("See a woman before marrying her.")
4. The sum paid by the husband should be moderate
5. She should not be barren
6. Of good stock
7. Not previously married
8. Not too nearly related to her husband.
The importance of #3 is contested, however, by Jimmy Soul inter alia. Otherwise, it is pretty good advice.