Most resorts have some form of activities. We've been there over Easter at VGF (my favorite) and BCV, and RIV (and AUL) that I recall. Pre-pandemic BWV did an Easter egg hunt or roll on the Village Green that was open to all. It was beyond crowded, so we just went to Epcot. I do recall special food items for sale at Epcot.
When we went to Riviera, there were Easter characters walking around the resort, and there were also activities on the lawn - we were going to parks so didn't stick around.
BCV had terrific chocolate Easter eggs on display like the Grand Floridian, but I don't recall activities. (my kids are park commandos these days, see above)
Aulani also had a full complement of activities and characters, we were tourist commandos. Aulani did have make your own easter baskets, Easter treats, etc for sale up til the day before? We got the kids some special Easter macarons.
Among those, my favorite was VGF, hands down. The whole lobby smells like chocolate, and there are eggs on display there and throughout the resort.