Verbal Chapter
Firstly, if you are asked about your favorite football team during a casual chat with a companion, you should not simply name a traditional powerhouse. The best combination is one traditional powerhouse + one second-tier team that has seen better days + one team with a few promising young players or near-second-tier stars.
Example: A asks B: Which team do you like? B: Real Madrid, Fiorentina, Napoli. For national teams, I like Argentina, Denmark, and Russia.
P.S.: Reference teams: National teams: Denmark, Belgium, Uruguay, Romania, Yugoslavia (and its successor Croatia, etc.). Clubs: Napoli, Leeds, Fiorentina, Ajax, Boca Juniors, River Plate, Steaua Bucharest, etc. Of course, saying them in their Hong Kong names makes it even more stylish, for example: Arsenal (Ngai Sen Nou), Fiorentina (Fui Na Lun Ti Au), AC Milan must be pronounced as "A Hee Milan," etc.