I think vintage pieces are such great accents for any room. While I think full-on vintage can be too much, mixing both modern & classic can create a glamorous room. Finding vintage pieces at antique, thrift, and garage sales are great ways to achieve this look for less. My advice is to start with your modern pieces or modern focal point, then search for vintage pieces that accentuate the modern.
It is also helpful to watch some old movies to get further inspiration. Some of my favorites include Breakfast At Tiffany’s, How To Marry a Millionaire, & Gone With the Wind. Each of these films has gorgeous sets that will offer fabulous décor ideas.
Just remember to not go overboard. You want an inspired room, not an exact replica!