I'd say over the years I've had shirts from the following
PNE of course
I currently have
PNE, Atalanta, Bologna, Cagliari, Chievo, Fiorentina, Genoa, Lazio, Napoli, Roma, Sassuolo, Torino, Udinese, Venezia and Parma Calcio. My favourite is Parma Calcio but my most obscure is Chievo, just an odd looking shirt ha
I've owned in the past Man City, Man United, Arsenal, Spurs, Everton, Leeds, Fulham, QPR, Reading, England, Scotland, Germany, Spain, Italy, Marseille, Valencia, Barcelona, Real Madrid, Bayern Munich, Dortmund, Tijuana, Besiktas and Aberdeen.
I've also got an England top with Nugent on the back from when he scored for England. I already had the England top and my parents got Nugent on the back haha, not sure how I feel but they tried to get it signed for me when he came back but the players stopped signing stuff etc due to covid then time crept by and he left North End.
The shirt collection goes back years and years so I tend to have them a couple of years then sell on. I use the money made from the sales to fund new additions.
I'm sure you can understand how excited I can be when North End announce a new kit although I've been a bit disappointed for the last few years.