I’ve always felt that Danse’s character arc aborted quite suddenly after his personal quest in FO4 and it really deserved to be pushed further.
The best next step? Danse joining the Minutemen. It’d be the best for both sides; Danse relearns a life outside of the BOS and learns to accept himself and the Minutemen are whipped into shape by a real soldier. (Because he is 100% right that the Minutemen are unorganized rabble who fell apart due to lack of discipline and honor.)
He’d be the general by the end of the month.