Ric Garrido lists the availability and value of points savers within the Marriott family in this article.
Thanks for posting, redeeming PointSavers maximizes value. Do note that Garrido's list may be illustrative, but not comprehensive. For example, the Courtyard Hartford Windsor and the Marriott Stamford Hotel & Spa have PointSavers for this upcoming weekend.
Tip: When searching on Marriott.com, make sure to check the option, 'Use Marriott Rewards points'. The properties which have PointSavers are usually listed ahead of properties with a Hotel Reward.