The most popular premium WordPress themes in the world (stats from BuiltWith.com) and the most powerful theme we use at ProBiz.MEDIA is Divi by Elegant Themes. Divi is constantly updated and includes their visual drag & drop page builder.
Whether we build your site or we help you build it, Divi is a top choice for reliability, page load speed and and amazing functionality.
See for yourself: https://www.elegantthemes.com
Need help? Call us and we can train you the skills you need to create with Divi!