Why? Are you assuming these folks are also good at marketing, or customers are sharing via word of mouth?
I rent. I assume homeowners use AngiesList or Yelp, but those reviews don’t guarantee skill or that someone will be in high demand.
Seems fair to me (interjecting: not the parent poster). I rent, too, but have heard countless conversations along these lines among Proper Adults.
Often grown-up #1 complaining about their latest project and grown-up #2 offering someone that served them well in the past. Point being, bad experiences are both so common and costly... that those who are good tend to stand out and stay busy. IME, those listings or the phone book are most suitable when you don't have a relationship to leverage (effectively rolling the dice).