I think this type of insurance policy strategy can only work if that person is not portrayed by the media as evil.

Media gave glowing positive coverage to Biden and Kamala Harris.

If Trump picked that kind of person, they would only use it as ammunition against his campaign and it would hurt his chances of even winning the general election in the first place.

Trump certainly has decent V.P. options that would be loyal to the U.S constitution and to him that are also not drags on the ticket.

Vance, Sanders or Carlson would fit that bill.