Best WPZoom alternatives for buying WordPress themes are listed in below. WPZoom is a marketplace for WordPress themes. But if you are looking for other marketplaces except WPZoom, you can check out the below websites.
1. MyThemeShop
2. StudioPress
3. Thrive Themes
4. ThemeForest
5. GeneratePress
6. Astra Theme
7. OceanWP
8. TemplateMonster
9. Elegant Themes
10. Themeisle
11. MOJO Marketplace
