How to Convert a template into a wordpress theme

So I have been buying and using pre-made themes for a while and am interested in going in a bit deeper and buying a HTML template and convert it to a wordpress theme. Does anyone know of a good tutorial I can look at for how to do that?

Hi there,

You can refer this article on Envato Tuts+ that might be able to help https://code.tutsplus.com/series/developing-your-first-wordpress-theme--wp-33845