Just get one of the tailwind UX kits and use their classes as your standard style guide. I personally use flowise as it’s free with paid more complex components if needed, but there are a bunch of others out there that fill the same space.
On a new project, sure maybe going with tailwind + a theme/kit is a bit more up to date than using bootstrap. But on an existing page that already looked fine with bootstrap, why bother with the extra work?
The same can be said about Bootstrap, though. Just get a theme to make it look less bootstrapy. I think both viable ways to go, and it just boils down to personal preference (especially for hobby projects).
Just get one of the tailwind UX kits and use their classes as your standard style guide. I personally use flowise as it’s free with paid more complex components if needed, but there are a bunch of others out there that fill the same space.