Manchester United should be among the favorite team to win win the Europa League if they perform well with their new signings and if Ten Hag use his young players well than using all these old players he have in his squad and some overrated players.
Let’s not forget Tottenham, AS Roma, and FC Proto, they can also be among the favorites to win the Europa League because they are also not small to win the Europa League because they are also rated almost close to Manchester United.
Ten Hag must also make good use of the old players at Manchester United now, because the new players also need a little adaptation and adjustment with the other players when they are in one squad for all matches. This means that every player is useful and should not be underestimated, especially as Ten Hag himself must have great determination next season in order to win the European League trophy and also his own domestic league. However, as you said, other teams like the ones you mentioned could also be favorites to win the Europa League trophy next season because they are not weak teams either.
It is very important that the new football players and the old football players who were in the team in the previous years can play ball in harmony. That's why summer months affect the whole season. If the harmony between the players is successful, the team will also be successful. Individual skills are very important, but team play is even more important. European matches next season will be very exciting again. Every team is trying to spend these summer months productively