I agree with you about Leverkusen and Liverpool, both teams are at a higher level than the others
Liverpool are leading the Premier League as well as being one of the greatest traditions in European leagues, and Leverkusen look unbeatable at this stage

But I'd put Sporting on your list too, maybe in mid and low chances, the team has been playing very well, scoring a lot of goals and Viktor Gyökeres is playing well, he's scored 31 goals this season and can help the team achieve a good position in the Europa League

And Milan, despite not being at their best, have a lot of tradition in difficult continental championships, so I won't be surprised if they reach the final