Based on an affidavit filed in case 20-cv-04651 TRO motion:
there's a lot of specific allegations/evidence of fraud in this affidavit filed with the court. A couple of examples below.

11. There were 3,276 Michigan precincts where votes cast compared to the Estimated voters based on reported statistics ranges from 84% to 350%. There were 19 precincts where votes cast exceed 100% of the estimated voters based on reported statistics.

17. 25 of 47 Wayne County precincts show 100% voter turnout. 46 of the 47 precincts display a highly unlikely 96%+ voter turnout.

16. There are several deficiencies with the Dominion audit logs. 1. logs are "voluntary" logs and do not enforce the logging of all actions (why not enforce the logging of all actions taken on by or on the software an honest observer might ask). 2. the logs can be altered by the people who are operating the system (again with no log of the alteration). 3. logs are not synchronized. Because of these deficiencies, it's of critical importance that all of the daily full records of raw data produced during every step of the elections process be made available for analysis (in addition to the audit logs).

there's a lot of information and purported evidence in this affidavit if you are interested in Michigan fraud allegations.