I used DaisyUI for a recent project and really enjoyed it. It definitely isn't "Bootstrap for Tailwind". While it does have some semantic class names like bootstrap, it's very few comparatively. It does have a semantic palette (customizable), but this is integrated with tailwind, so all your tailwind utility classes share the palette.

It also has some unstyled or lightly-styled components (modal, dropdown, etc). These are just like using headless UI, but with less JavaScript. These also work well with the Tailwind utility classes to let you customize the actual display.