When I started working on one of my side projects a year or so ago, I realized I didn't have time to figure out how to style each and every component, so I paid for Tailwind Plus. It was pricey, and I definitely had to think about it for a few days, but I'm so glad I did. It saved me way more time than the dollar value of the product, and it has continued to get better.
If you are using Tailwind, I highly recommend Tailwind Plus. You'll learn so much about what Tailwind can do using that library, and it is so easy to adapt into your own offerings. It is 100% worth it.
Hearing that they're struggling, I may have to also bite the bullet and pick up Refactoring UI.
Note: I am in no way connected to the Tailwind folks other than through my credit card.