Maybe I'm biased, but it seems if you sincerely believe the election was "stolen" (however you want to interpret that), then the best place to look is at the evidence and the arguments the Trump campaign lawyers are willing to offer in court.
Secret Laser Watermarks on Ballots
Secret Laser Watermarks on Ballots
Secret Laser Watermarks on Ballots
Maybe I'm biased, but it seems if you sincerely believe the election was "stolen" (however you want to interpret that), then the best place to look is at the evidence and the arguments the Trump campaign lawyers are willing to offer in court.