Saw on Frequent Miler that the
Marriott Boundless (5) 50k certificate offer for $5k/3mos is back, which can often be a great deal. Here's the
public offer. I believe you can top these off with 15k points. Note that these aren't as easy to use as straight points, so do some research before signing up. My support offer is only showing 3 certs, so the public offer is better.
TIP: When I've done this in the past, I've made the mistake of meeting the MSR too quickly. Because these are good from one year from distribution (mine we issued within a few days of hitting MSR), I wished I had slow walked the MSR so that I had a little more time with the certs.
ETA: We've previously used these at the Swan, Swan Reserve and/or Dolphin. Even the Swan Reserve looks like it tops out at 66k, so would fall within the 50k cert + top off.