IJust recently I had a buyer tell me, "we're going to use a bunch of agents so we can keep our options open." I've also heard "we'll use the agent who brings us the right house."
These are terrible ideas and there are 4 reasons why:
(1) Everyone sees the same inventory
(2) There are lots of loser agents
(3) You'll get minimal effort
(4) Misaligned agendas
This video goes into detail on these four reasons.
Bottom line: find a good agent and have them go to work for you to find the right house!