HyperUI is a large collection of free Tailwind CSS components for marketing, eCommerce and application UI
If you are looking to contribute to HyperUI, then please read the How to Contribute blog post.
Alpine JS Components
HyperJS is a related project of mine that has ready to use Alpine JS components.
Tailwind CSS Gradients
Hypercolor is a related project I work on that lists gradients created with Tailwind CSS and includes generators.