For me, the final match will be between Betis Sevilla and Chelsea. The other teams are not strong enough to compete and Betis and Chelsea are both very strong. At the moment I even see Betis Sevilla as slightly stronger than Chelsea, but in the end it will depend on the form of the players on the day as to who will win.
Don't be surprised if Fiorentina plays in the Conference League final. I don't think we should underestimate this team since they are performing well in both the league and this competition, Fiorentina defeated NK Celje in the first leg in an away match, however they are not included among the teams that will make it to the final. Even if Chelsea were to face Fiorentina in the final, I am confident they will be able to defeat Chelsea.
However, Fiorentina has made it to two Conference League finals in the last two seasons but lost both times, luck was not on their side. I have a feeling Fiorentina will not let this happen to them three times, maybe they will give their best to win the title. But let's see which club can go to the final round next week.
I also think Fiorentina are playing no worse than Betis or Chelsea... They're doing very well in Serie A... They managed to beat Atalanta, Juventus, drew with Milan before the Conference League match... I'd say Fiorentina probably have a better chance of beating Betis and getting to the final, where they will most likely face Chelsea... But probably Chelsea will win the final, although anything can happen...