In the European League, it will actually be even more difficult for small and weak teams to get tickets to the Champions League because here only one candidate will get a ticket to the Champions League. That is, the candidate who can win, while the others will not get anything and what we see now is that Liverpool and Leverkusen are both strong teams in their respective domestic leagues and even if they can't win the European League, both teams are already has the opportunity to get a ticket to the Champions League through its own domestic League.
Actually, the European League is not much different from the domestic league, it's just that in the European League there are selected clubs from other leagues that perform well, but are not as good as the clubs that won Champions League places, but still the European League is also quite difficult for these selected clubs. But sometimes the European League can also provide surprises, in fact clubs that don't perform very well in the domestic league can actually perform well in the European League, such as Sevilla in the last few seasons, they didn't perform well in La Liga but became champions in the European League.
Leverkusen and Liverpool are indeed strong clubs at the moment and they also want to fight for the Europa League trophy, even though they have secured a place in the Champions League but what they want to achieve is not the ticket but the trophy because they have already secured a place in the Champions League through the domestic league this season.
And between these two clubs it is actually quite difficult to predict who will get the trophy because both have almost the same strong performance, but usually English clubs are good enough to be favorites with their strength being greater than other leagues.