Really come on we need some context . Post a pic here in a comment of the wall . DO NOT start another post just post here in a comment.

This is one of my favorite pics even though it’s not my style. Google images for ”buffet wall decor” to find pics that inspire you. There are articles too.

People use small lamps, vases, sculpture, mirrors, framed art, floating shelves above, other wall art. Nice thick garlands can also be fun. You can decorate a buffet like a mantel for the holidays.

I generally prefer minimal decor for a buffet surface most of the time.