Paris St-Germain begin their Champions League campaign on Wednesday hoping to enter that bracket, attempting to become continental champions for a third successive season.
To mark this, we're looking at how the Parisians compare to those clubs who have enjoyed the most dominant eras in European competition.
Some will point out that football existed before the European Champion Clubs' Cup began in 1955 - so apologies to Stan Cullis' 'world-champion' Wolves outfit and the Mitropa Cup's early Vienna heavyweights.
However, this top 10 debate is centred around winning European football's grandest prize.
10. Paris St-Germain 2024-
OK, straight in with the current champions, because this is a dynasty in the making.
PSG have had a lacklustre start to the season - they always do this, don't they? However, you wouldn't bet against Luis Enrique's slick side adding a third successive European crown come next summer.
The Parisians have been France's most dominant force since the arrival of Qatar Sports Investments 15 years ago, but it took a change of approach for the holy grail of continental success to arrive.
"It's the end of the glitter," professed president Nasser Al-Khelaifi after years of lavish spending, ushering out the "flashy, bling-bling" era.
Instead, Enrique arrived in 2023 intent on building a coherent team. There was still significant investment, but on younger players who could be moulded by his philosophy and discipline while given room to flourish.
The result was two scintillating Champions League triumphs.
The story goes that Bela Guttmann, fresh from winning the title with Porto, rocked up at Benfica, sacked all the senior players and promoted a talented bunch of youth team players instead.
Those promising youngsters won the title and then went all the way in the European Cup, beating Barcelona in the 1961 final.
That summer, a teenage Eusebio also joined Guttmann's squad and steered them to European glory once more, seeing off Tottenham Hotspur in the semi-final before beating the great Real Madrid in the competition's showpiece.
The legendary Ferenc Puskas scored a first-half hat-trick for the Spaniards, but Eusebio netted twice after the interval to seal Benfica a second successive crown.
Guttmann, buoyed by his remarkable success, left the club after not being offered the pay rise he felt he deserved and the curse the Hungarian boss supposedly put on the club - that they would not win another European trophy for 100 years - has become fable.
Whether the often-disputed story is true or not, the Lisbon giants have not landed another since - losing eight European finals, including three in the 1960s.
Where does this particular Milan dynasty start and end? It was fuelled, of course, by Silvio Berlusconi, who saved the club from bankruptcy in 1986 and appointed the up-and-coming Arrigo Sacchi as boss.
You could argue it continued until a Champions League final defeat by a young Ajax side in 1995. In between, the Rossoneri won back-to-back European Cups in 1989 and '90, then thrashed Cruyff's Barcelona 'Dream Team' in 1994 after defeat in the final the previous season.
In fact, the only campaigns in which Milan did not reach the final were after their quarter-final second leg was abandoned because of floodlight failure while trailing Marseille in 1991. The Serie A giants' refusal to re-enter the pitch for the final minutes of that one also led to them being banned the following year.
From Sacchi to Fabio Capello, through the brilliant Dutch trio of Ruud Gullit, Marco van Basten and Frank Rijkaard to homegrown stars Franco Baresi, Paolo Maldini and Alessandro Costacurta - the Italian core remaining from that 1989 triumph to the defeat by Ajax six years later - Milan were a phenomenal force.
In an era of English dominance on the continent, winning seven of eight European Cups between 1977 and 1984, Liverpool's 'Boot Room' boys led the way.
The Reds won four of those, Nottingham Forest - who could argue they also deserve a spot on the list - went back-to-back and Aston Villa completed the haul.
Liverpool's European pedigree really began when Bill Shankly's side won the Uefa Cup in 1973, the Reds doing it again three years later under Shankly's former assistant Bob Paisley.
Paisley was able to deliver the biggest prize of all the following season in Rome and, after Kenny Dalglish was brought in to replace Hamburg-bound Kevin Keegan, retained the European Cup at Wembley against Club Brugge in 1978 - the Scottish forward netting the winner.
Three years later, after Brian Clough took Forest to the top, Liverpool were European champions again when Alan Kennedy's goal downed Real Madrid in Paris.
Perhaps most impressive is how the Anfield outfit were able to maintain that success through a series of managers. The line of succession from Shankly to Paisley then landed on Joe Fagan, who was in charge when they beat Roma - in Rome - in '84. That was before r, and defeat by Juventus, the following year.
When it comes to dominance, no one compares to the Real Madrid side who stormed to five successive European Cup triumphs after the competition began in 1955.
With the tournament in its infancy, it was perhaps not considered as imperative by certain nations compared to how Champions League participation dominates clubs' thoughts today, but Real Madrid's style and success helped to alter perceptions.
Alfredo Di Stefano, already a world star by the time Real beat Reims in the inaugural final, was an integral part of the Spanish giants' success, the legendary Paco Gento likewise a stalwart (he also won a sixth European Cup in 1966).
Then, in 1958, Madrid added Hungarian genius Ferenc Puskas following his two-year ban for refusing to return to Budapest after the revolution in 1956.
Puskas was 31 when he joined, but scored 35 goals in 39 European Cup games for Real Madrid, including four in the 7-3 win over Frankfurt at Hampden in the 1960 final. Di Stefano grabbed the other three as Madrid made it five on the spin.