I'd love nothing more than having Nagelsmann become world class for us, completely reshaping the squad and playstyle, challenging Liverpool and City with entertaining, effective football. That's the most exciting option but... can we afford the risk?
I'd also love seeing Allegri instill some discipline, intelligence and consistency in the team, establishing us as 3rd best team England because currently we're far from that. That's the most logical option, even though less exciting.
Poch would be fine too, he's somewhere in-between. More attacking football than Allegri and better at developing young talent, but none of the credentials and winning mentality. More established and safer option than Nagelsmann, but more conservative and possibly peaked already.
Tuchel - sorry, but I can't take someone whose PSG gets knocked out by Ole seriously. What a clown. Rose - meh.