Apologies in advance for the very long post, but I know that a lot of you have a deep reading history and love of the medium and I figure that the more context I can offer the more custom tailored the recommendations will be.
I either own, or have already read virtually every Neil Gaiman comic including the many graphic adaptations of his short stories.
All time favorite books/series that provided the high I’m still chasing:
- Sandman (and all related penned by Gaiman himself)
- Virtually all of his other Vertigo work, especially the Books of Magic mini-series
Things not by Neil that I loved as much, or almost as much:
- Invisibles
- All Star Superman
- Killing Joke
- Kingdom Come
- Marvels
- Arkham Asylum: Serious House on Serious Earth
Have not read in 40 years so no idea if they hold up now but have formative memories of:
- X-Men: God Loves, Man Kills 1982 Graphic Novel
- Dazzler: The Movie 1982 Graphic Novel
- Bill Sienkiewicz run of New Mutants
Second tier of things I really enjoyed but don’t quite make the above all time favorites list:
- Mike Carey’s original Lucifer Series
- Dark Knight Returns
- Stardust
- I, Gregory
Extremely well rated and frequently recommended titles which either didn’t leave a lasting impression or just didn't hit for me the way the above titles did:
- Original John Ney Rieber Books of Magic series
- Fables
- Y The Last Man
- 100 Bullets
- Ex Machina
- Batman Year One
- Promethea
- Watchmen (while I know it’s heretical I actually loved the HBO sequel show way more than the original book)
- Black Orchid
- Mr. Punch
- Marvel 1602
- Gaiman’s Eternals
- Gaiman’s Murder Mysteries
- Violent Cases
- League of Extraordinary Gentlemen
- Top Ten
- Persepolis
- Alan Moore Swamp Thing
- Runaways
- We3
A few things I bounced off (admittedly only tried the first issue or two):
- Preacher
- Grant Morrison’s X-Men
- Bone
- Maus
Things I already have access to, or have on my library list:
- Saga
- Wicked + Divine
- Best new Sandman Universe titles (Lucifer, The Dreaming, Nightmare Country, John Constantine Hellblazer, Deadboy Detectives, Thessaly, Locke & Key: Hell & Gone)
- Shade the Changing Man
- From Hell
- Unwritten
- Ice Cream Man
- Miracleman (Moore & Gaiman runs)
- Hellboy
- Monsters
- Die
- Once & Future
- Sex Criminals
- Nice House on The Lake
- Something is Killing The Chidren
- Brubaker's Criminal, Fatale, and Velvet
- ODY-C
- Wytches
- Moonshadow
- Gideon Falls
- Locke & Key
- Sandman Mystery Theatre
I tend to favor philosophical, metaphysical, fantasy, sci-fi, supernatural, psychological, literary, mystical, macabre, or psychedelic over pure realistic/hardboiled, but open to exceptions for things that are truly transcendent.
Open to superhero books which are exceptionally sophisticated, high-brow, high-concept, or truly unusual. (Marvels, Kingdom Come, All-Star Superman, Arkham Asylum: Serious House being perfect examples of what that means to me at least)
Open to horror, extreme violence, and/or explicit sexual content, but by no means need any of that to be present. Think HBO shows, did enjoy Sunstone, and liked the old Heavy Metal magazine growing up. For me the quality of the content trumps all. I can enjoy something overtly queer or highly feminist just as much as something deemed misogynist or exploitive by some if it's artistically or creatively outstanding.
As far as non-comic media some of my all time favorite shows that are a bit lesser known are Utopia (UK show), DEVS, Rectify, Patriot, and more well known; Severence, Game of Thrones S1-6, True Detective S1. In film I dig Alex Garland, Charlie Kaufman, Ari Aster, Robert Eggers, Christopher Nolan, Coens, Paul Thomas Anderson, Yorgos Lanthimos, Denis Villeneuve.
While series and graphic novels are obviously great, I'm definitely open to one-shots, mini-series, and lesser known titles that aren't collected provided I can get the floppies without paying an absolute fortune. (library system here in NYC has a very deep catalog of TPBs and happy to buy floppies online via eBay, AtomicAvenue, etc.)