How can I get the best rate for Kuredhivaru Resort & Spa? Or any similar resort recommendations?

Hi all, I’m wanting to go to the Maldives with my husband in late November. We have found Kuredhivaru Resort but when we called them directly, they were a bit out of budget. How can we get the best rate, is there another better avenue to book resorts?

We are looking for an overwater villa with a pool for 5 nights, full board, no more than $5,500 max.

Thank you in advance!