We could try playing Bellingham but actually asking him not to "do what you fucking want" but instead play a position that helps get the best out of him and his teammates.Mainoo looked better than Gallagher, i.e he can keep the ball and pass it better but it was a pretty low bar.
Rice & Mainoo
Palmer, Foden , Gordon
Kane
?
Mainoo is not the answer, unless the question is "name a midfielder who switches off without the ball consistently".