Portugal Early March

Hey everyone! My fiancé and I are looking to plan a 8-10 day honeymoon in Portugal following our wedding on March 1. Ideally we would want to relax on the beach at a nice beach resort for the first couple of days and then do some sightseeing/wineries, standard honeymoon type things etc. on the latter end. We will likely fly direct from the US into and out of Lisbon. I was wondering what recommendations you all may have and if you might have sample itinerary that fits the bill!

I also have about 200k Amex points that I am looking to spend all of (but trying to stretch them as much as I can)

Any recommendations are much appreciated! Thank you!