A lot of FReepers think Michelle will be the pick. I think she would be a hard sell as her only experience is in being First Lady. At least Hillary had a political career handed to her with a senatorial gig and then Sec. of State.
I would not be shocked if they just openly said, "Vote for Michelle so that Barack can have a third term. She'll have the title, but Barack will run the country and everything will be great!!! We promise Michelle won't actually try to do anything."
I predicted earlier that the thing to watch is the Secretary of State position. If they move to oust and replace Blinken, that's the person they will want in the Oval Office.
Replace Blinken, then oust Harris, then Biden has a health emergency, then Pelosi and Leahy decline the Presidency citing age and retirement, and the SoS becomes President going into the 2024 election.
I don't think they will try to put Michelle Obama into the Vice Presidency. There would be too much opposition from the right, claiming that Obama has even less government experience than Harris had, and that the American people deserve someone with a deep résumé after Harris, especially given Harris' résumé of offices without accomplishments.
They will try to use the Secretary of State as a Trojan Horse to get their desired person into the Oval Office. That is the person President Trump will be running against in 2024.
-PJ