If you are Caesars Diamond or even a lowly Platinum, they temporarily match to Wynn Platinum, which gets you a $150 food comp and a $100 spa comp. [Edited because of a big omission on my part: The Wynn comps are only available on your birth month. Sorry about that!] And if you stayed at Wynn twice in 2023 or will in 2024, it includes a Holland America cruise anywhere they sail, probably up to 11 days, for just the port fees and taxes. Booking two separate one-day stays a day apart at the Wynn will qualify.
Then you take your Wynn Platinum to the Fontainebleau and get matched to Gold. That gets you another $150 food comp. They also offer a $100 spa comp, but you must be staying in the hotel.
MGM Gold and Stations President among others also qualify in various combinations, but it isn't too often that a Caesars Platinum holder gets much of anything.
https://www.wynnlasvegas.com/wynn-rewards/tier-upgrade
https://www.fontainebleaulasvegas.com/rewards/tierupgrade/