If you have members of your target marketing following you on social media, publish a post where you ask them to reveal any specific questions or challenges they have about your course topic. Just like with an email, you could share a link to a survey as an alternative to responding to you publicly (this might be the better option depending on the nature of your course topic). Sales Funnels Examples | Sales Funnel Examples
However, WordPress might not always be the right option for you. Although it is surely one of the most popular CMS platforms, there are certain circumstances where you want to see if there are better options for you out there! Especially if you are new to creating and running a website, it might take longer than you think to actually get things right at first. Although there are plenty of helpful tutorial sites like Beautiful Themes and WPBeginner dedicated especially for the purpose, sometimes it is a hassle.