I have a requirement where I need to create a site which addresses all the
WCAG standards. Please suggest some tools for the same.
SharePoint is compliant with WCAG standards as mentioned on Microsoft's site here:
Although the content from SharePoint is compliant with WCAG, you don't guarantee the users' content would be compliant or not, for that, you need to follow some practices, like in this article:
I suggest to read more about it in the discussion here: