I strongly suggest signing a BRA with the agent you chose. For many years the sellers had the benefits of Exclusive Client Status and so should you! It is in your best interests to work with one salesperson instead of several, for the following reasons:

Excellent communication between the salesperson and the buyer is critical to getting the right property for you the buyer. The communication is diluted if you are dealing with more than one salesperson.

The BRA enables the parties to agree on and document in writing the terms and limitations of their agreement, including geographical limits, property types, commission rate, and duration of the relationship, just as a listing contract does with a seller.

With the comfort of the BRA in place, the salesperson will have no concern about introducing all properties of interest to buyer client, regardless of the commission being offered.

If the buyer refuses to sign the BRA, it is usually a "red flag" to the salesperson, indicating that the buyer is likely working with other sales people. That may act as a disincentive to the salesperson.