I don't think there is a quick fix to this mess, so in my view, we need to first look at short term solution, someone like Ancelotti (obviously no him, since he is at Real and getting a bit old), who comes in to steady the ship, get some confidence back into the players and get them playing a system suited to them and the PL, something ETH is clearly failing at (wish he wasn't, but here we are). This should be viewed as short term with rolling contract until start of the 2025/26 season at the most.
Then mid term, until the end of the season, work on overhauling the footballing structure within the club and establishing a clear vision as were we want to be. Bring in a capable DOF, who will oversee the implementation of said vision and first work over the next few transfer windows to bring in and faze out the player in accordance with the vision.
Mid to long term, find a coach that is best in line with the vision of the club, but don't be afraid to chop and change if things aren't working out, this "SAF like god figure manager" obsession has to stop.
And no I don't have any names, I'm (lately) just a casual football fan, and outside United matches and occasional late stage CL tie, I hardly watch football anymore.