Free themes might cost you in functionality and customization, but there’s a few places you can get good themes with plenty of bells and whistles for less than a cup of coffee:
- Automattic: This is the company that runs WordPress.com. Many of their themes look sharp and come with plenty of customization features.
- SiteOrigin: What’s great about SiteOrigin’s themes are that they come with the Page Builder plugin which gives you more customization of your pages’ appearance.
- WooThemes’ Storefront: You can quickly sell things online with WooCommerce using the Storefront theme.
My main reason for choosing these sources is that they offer a good diversity of theme applications (e.g, magazine, portfolio, blog), provide good documentation, and the themes generally work out of the box without too much customization.