It was a story going around on reddit a couple of months ago about a guy claiming to be a whistleblower. Some guy claiming he was an ex intelligence agent or something, said he was part of an NSA audit on the election that showed definitively that Harris won, but his claims didn't have a lot of meat to them so I kind of discarded it as a hoax or whatever.

But there was some evidence presented by another account I can't remember. He showed some compelling irregularities in the results that seemed plausible. There is also the court case in NY with people signing affidavits claiming their votes were switched.

I'm on the shitter so I can't link anything right now, but hopefully that information from my poor recollection will help you find what you're looking for.