Google "your city" homes for sale and see who comes up.
But, you should grab a few of the loca RE magazines and the local newspapers. Check out which company and agent is most visible in it.
This agent has the $$ to advertise in well-noticed places. They probably are fairly successful, and they are full time. Definitely choose a FT RE agent.
If I can be of help, let me know. Thanks and good luck,
Interview several individuals and have them explain their marketing plans to you. Gain an understanding of the process they will take, and go with the person/company you're most comfortable with. My personal advice is to let them do their job once you've hired them! They're professionals for a reason. Good luck with your property!