Don't have the largest physical collection due to digital media being more convenient for me, but I'll throw out some of my collections.
Manga Collection
Various random issues of Monthly Shonen Jump when that was a thing here.
Hunter x Hunter volumes 5-26, & volumes 33-34
Arpeggio of Blue Steel volume 1 (haven't read it yet)
Parasyte volume 1 (haven't read it yet, just learned while looking at my collection that my version comes with a crossover with Fairy Tail, so that's weird)
Land of the Lustrous volume 1 (haven't read it yet, this is the theme of my life)
Rohan at the Louvre
Descending Stories: Showa Genroku Rakugo Shinju volumes 1-4 (haven't read it yet)
Blood Blockade Battlefront volumes 1-8
Neon Genesis Evangelion Omnibus versions volumes 1-14
JoJo's Bizarre Adventure Part 3 Stardust Crusaders hardcover volume 1 (haven't read from the hardcover)
Yowamushi Pedal volume 1 (haven't read it yet)
Noragami volume 1 (haven't read it yet)
Fullmetal Alchemist volumes 1 (hardcover version), 10, 13, & 23
Master Keaton volumes 1-4 (read three chapters)
Monster Perfect Edition volumes 1-5 (haven't read it through the perfect editions yet)
Your Lie in April volume 1 (haven't read it yet)
Deadman Wonderland volume 12
Shaman King volume 1
Black Cat volumes 2-4 (haven't read it yet)
I forgot I had half this stuff, lol. Right now, I'm just sitting here, trying to figure out why I didn't get volume 1 of Black Cat.
DVD/Blu-Ray Collection
Hunter x Hunter volumes 1-3
Batman: The Animated Series volumes 1-2
The Lone Gunmen The Complete Series (haven't watched it yet)
Invader Zim seasons 1-2
Samurai Jack seasons 1-5
Pokémon The Movie: I Choose You
Malcolm in the Middle: The Complete Collection
WrestleMania 21
WrestleMania 22
D-Generation X
No Mercy 2006
Taboo Tuesday 2005
SummerSlam 2007
Rob Van Dam One of a Kind
Gun x Sword The Complete Series
Mushishi The Complete Series (this one is a lie since it got another two cours but it was complete when I bought it)
Baccano! The Complete Series
Trigun The Complete Series
CM Punk Best in the World
Brock Lesnar Here Comes the Pain (haven't watched yet)
GetBackers the Complete Collection
Dragon Ball Z Season Five
Wolf's Rain The Complete Series
Tombstone The History of the Undertaker (haven't watched yet)
Oblivion Island: Haruka and the Magic Mirror
Back to the Future 25th Anniversary Trilogy
Edge A Decade of Decadence (haven't watched yet)
Scrubs seasons 1-3, & 7
Andre the Giant (haven't watched yet)
Seth MacFarlane's Cavalcade of Cartoon Comedy (unfortunately have watched)
Married . . . With Children seasons 1-2
That 70's Show season 3
'cause Stone Cold Said so (haven't watched yet)
Rick & Morty seasons 1-2
The Wrestler (haven't watched yet)
Greg the Bunny (haven't watched yet)
Newsradio seasons 1-4
Ghost Stories Complete Collection (watched six episodes)
The Princess Bride (haven't watched yet)
Parks & Recreation season 7
Community seasons 1-3
How I Met Your Mother seasons 1-3
I know this was kinda all over the place in terms of wrestling dvds, anime, sitcoms, etc. but that's because I don't have these very well organized and they're in like four different piles.
PS4 Collection PHYSICAL ONLY I'M NOT WRITING DOWN OVER 200 GAMES
Jump Force
Minecraft Story Mode Season Two
The Walking Dead Collection (haven't played yet)
Team Sonic Racing
WWE 2K19
Astro Bot Rescue Mission
Marvel's Spider-Man (haven't played yet)
Fire Pro Wrestling World
Batman Arkham Knight
Dragon Ball Xenoverse
Monster Hunter: Wolrd (haven't played yet)
Cartoon Network Battle Crashers
Deadpool
WWE 2K16
Disgea 5: Alliance of Vengeance (only played the demo I think?)
One Piece Burning Blood
Dragon Ball FighterZ
Berserk and the Band of the Hawk
Tekken 7
The Seven Deadly Sins Kinghts of Britannia
Sonic Forces
Dragon Ball Xenoverse 2
Ratchet & Clank
JoJo's Bizarre Adventure Eyes of Heaven (Japanese Import because I was a weeb who couldn't wait)
Mortal Kombat XL
Crash Bandicoot N.Sane Trilogy
Ultimate Marvel vs. Capcom
My Hero One's Justice
Playstation VR Demo Disc 2.0
J-Stars Victory Vs. +
Attack on Titan
Spyro Reignited Trilogy
Sonic Mania Plus
It's fun rummaging through my stuff and reminding myself how bad I am with money, but I think I'll call it quits here.