Here is a link to a website listing their top 10 WordPress responsive themes.
- #10 Esteem – http://demo.themegrill.com/esteem/
- #9 Ample – http://demo.themegrill.com/ample/
- #8 Metro CreativeX – http://demo.themeisle.com/metrox/
- #7 Unite – http://colorlib.com/unite/
- #6 Dynamic News Lite – http://preview.themezee.com/dynamicnews/
- #5 Responsive – http://demos.cyberchimps.com/responsivepro/
- #4 Spacious – http://demo.themegrill.com/spacious/
- #3 Zerif – http://demo.themeisle.com/zerif-lite/
- #2 Sparkling – http://colorlib.com/sparkling/
- #1 Evolve – http://demo.theme4press.com/evolve/
wpBeginner.com has a list of the top 21 best free WordPress business themes.