If you risk a little more, for example Liverpool, Haaland, Bayern, PSG, Atletico, then you get: 1.20 * 1.66 * 1.16 * 1.16 * 1.25 = 3.35
It will be interesting enough but if you add some other odds like for the top scorers especially for Kane in the bundesliga and Mbappe in La Liga, I don't find the odds but if it does there will definitely be big enough to be added in the parlay.
For Serie A it will be the same as the EPL although it will look easy for the top 4 but the reality is it will be a little complicated just to be at Inter for a top 2 finish with odds of 1.35 this will also make the bet more solid I think. 3.35 odds added with Inter top 2 with odds of 1.35 can make this bigger especially if the parlay there is an additional boost that is always provided by the site when betting more than 5 bets in 1 parlay.