I bought https://shipfa.st/?via=top during Black Friday, but I'm not particularly satisfied with it because Marc focuses too much on marketing rather than continuously improving Shipfast, and there might not be new features for a month or two. This is more suitable for building landing pages rather than complex applications, as the rich components are basically designed for landing pages. In terms of landing pages alone, it is still a decent template.
To build complex applications, https://supastarter.dev/?aff=zXRYe is currently the best I've used, based on a monorepo, with complete features and clear, robust code. However, the downside is that there are very few components for landing pages, which complements shipfast perfectly, But his price is also the most expensive..
there are also two other good ones: - https://anotherwrapper.com/?aff=zXRYe Build AI Nextjs saas very quickly, leveraging one of the 9 demo apps. - https://shipped.club/?aff=zXRYe It is quite balanced, with a rich set of features and landing page components, and it also includes a Chrome extension, all at a relatively affordable price.