There are lots of websites that can refer you to agents, but not all of them are real. Some of those agents may have paid the owners of those websites to get listed there. However, you can still find some that are reliable. You may want to check out Sarnia real estate agents for more information on how to start your search especially if you live in Canada or plan to buy property there.
For more info browse this website: https://www.casandraproperties.com/blog/how-to-find-a-reliable-real-estate-agent.html