I have built this site (gauravtiwari.org) and many others on Marketers Delight (MD) WordPress theme. MD has a powerful design system with inbuilt hooks, powerful filters, marketing optins and inbuilt Gutenberg support. It is both fast and beautiful at the same time. It’s priced at $58 for one site and $97 for 5 sites. But if you buy a license you get usage on unlimited sites with automatic theme updates on one to five sites depending on the license.
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