I am Hubspot Certified Developer, 13+ years experience in web development, 3+ years experience in Hubspot CMS Development, Successfully completed multiple projects in hubspot, like email design, landing page, website and blogs. Based on your requirement, I can cover the following item.
Website - Both HubSpot Theme concept and Drag and drop method
Blogs - Both HubSpot Theme concept and Drag and drop method
Landing pages
Email templates
Please ping me private, I will share some of my previous works.