My solution to stop voter fraud would be to require all legal voters to vote in person on election day, with valid identification. There is no way any voter could be disenfranchised. If you cannot be there (at the voting precinct) then you were not there, and you lost your chance to legally vote. No absentee voting, and no mail-in voting.
The vote count must match the voter registration list of those who voted in person. Sounds too harsh? Not when voter fraud is as obvious as it was in the 2020 election.