One fix, not fifty
Findings can be grouped by the component they came from rather than by the rule they broke. A list of eighty contrast failures collapses into one entry: a button, used eighty times, with one colour to change.
The grouping is derived from the markup — class names, framework component boundaries, repeated structures — and it shows the evidence it used, so you can see why two things were treated as the same component.
Across pages, too
Run a whole-site scan and the same grouping applies across every page in it. A rule that fails on every page scanned is almost always one shared component.
Start with the page you are on
Install the extension, press F12 and open the Accessibility tab. No account, nothing to configure, and nothing leaves your machine.