Auditions don’t work with multi-cam, and I think your material is two-camera plus separate audio. There are several possible workarounds. These are just ideas, maybe someone has a better approach.
In the Event Browser you could simply draw ranges over each “take” in the multi-cam and keyword that. Then click on each keyword in the left sidebar to rapidly switch between takes. If you want to see all the sub-clips in the Browser at the same time, create a keyword smart collection. You could quickly skim from take to take, without even being on the timeline. Then when you decide which one is best, put that on the timeline.
If you want to combine parts of different takes, you could also do that. E.g, favorite or keyword the preferred “take fragments” as you skim each take in the Event Browser, then add those to the timeline and fine tune them.
A keyword smart collection can be either library-wide (aka “Library Smart Collection”) or within a single event. This article discusses how to make them: https://larryjordan.com/articles/fcp-x-library-smart-collections/