Assuming you bought a domain and hosting. You everything done and want to start building your site and email list here are the things you will need.
Mailster is a newsletter plugin that turns your WordPress site into a newsletter sender and replaces things like Constant Contact, Mailchimp, and others. The nice things are 1 time purchase. You need only purchase support if you have trouble outside of the 6 month or 1 year periods. Updates and functionality will continue. It is easy to use and just works, but also has advanced mail features like tagging.
Divi by Elegant Themes
This is the easiest and in my mind the best Visual Builder for WordPress. It will let you drag and drop things in place, use templates, and edit on the fly. It also comes with a ton of perks, pre-made templates, and other helpful plugins. It also integrates with Mailster.
MTA – coming soon