Really Good Emails - A large collection of good product email design.
Squarespace Start - Build a simple website right from your mobile phone.
Email Love - Email design inspiration, templates and discovery
Softr - From zero to a website in 5 mins, using building blocks.
Stamplia - High converting and beautifully designed email templates
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.