Nat Geo for me currently.
And White Dwarf when I can find it locally. And I don’t even play Warhammer.
I used to get the NME for the longest time - 80s to 2000s, but gave up on it a few years after it became more of a magazine format.
They still sponsor them.
I spend very little time these days looking at maps. But when I was young I was fascinated by them, especially in an new-but-old replica edition of an encyclopedia (printed for its 200th anniversary). Vast tracts of… land were declared “Parts Unknown”, places shrouded in mystery. This was also where lesser WWE wrestlers (without a theme song on entry) hailed from.
Sure, Nat Geo still sponsors trips. We don’t know everything about the sea or sky. But it hardly has the sane romance as yesteryear.
Man, you guys are good.
I’ve had a continuous subscription to Analog since I first got it as a gift for my 13th birthday back in 1981. So “only” 40+ years for me. 
I’ve subscribed to Scientific American since 1965 and my wife has subscribed to New Yorker since 1962.
Analog since 1968, although I now get the digital edition.
I also have almost every issue of Military Modeller from about the third or fourth one in 1971 to when they ceased publication in 2018, but I never subscribed, as it was an excuse to visit my local hobby shop at least once a month (which opened the year I was born and is still in business). An excellent modelling reference which is sadly missed.
But you’ll be subscribing after I’m gone. Actually, I should set up something in my will to have issues delivered to my burial site. I’ve looked at the circulation numbers, and they can use all the subscribers they can get.
I started reading my older siblings’ 50s era Mad Magazine, pocketbooks, and hardcover as a young child. I subscribed to the magazine in the 60s-80s. It’s no doubt Mad influenced me more than any other publication. I started a thread about it a few years ago.
I had a subscription to Mad when I lived in the Congo 1961-1962. But I dumped it by the time I was in high school.
Consumer Reports
National Geographic
My subscription to Consumer Reports lasted 30 years.
Nat Geo had incredible photography. That took me around the world.
The web sites aren’t the same experience.
Harper’s
Games
Both for as long as I can remember. At least 30 years each.
I had literally just resubscribed after maybe 10 years thanks to an offer I couldn’t refuse, and after 3 issues I got that postcard. ::
EW seems to have become a tool for Netflix. It is now all online, from what I see.
I was a Charter subscriber, then Issac let someone else take over and started publishing mostly Spec-Fic etc, rather that the type of stories Asimov had promised.
The Week seems to be a decent weekly news magazine, slightly left leaning bit pretty balanced.
Dudes, I found that if you do NOT renew a sub for a lot of zines, they will send you increasing good deals. TV Guide keeps me on, even though I haven’t paid for a sub in a couple years.
I just got a deal from Backpacker, for $12 for a year.
I forgot tv guide. My parents had a subscription for my entire childhood. They finally dropped it in the 1990’s. They got a big satellite and it required a schedule guide.
I alternated between tv guide subscriptions and just buying a copy at the store. Most of my shows were on a regular schedule. I didn’t need a tv guide every week. I’d buy The Fall premeire and a new one as needed.
Just a nitpick. Asimov lent his name to the magazine and wrote nonfiction for it, but he had nothing to do with running it. Joel Davis of the successor company to Ziff-Davis, which owned Amazing, started the magazine. George R. Scithers was the first editor and set the tone. He left to become editor of Amazing after that had been sold and needed a name. Davis had bought Analog in 1980 and may have decided he didn’t need two magazines catering to the same audience, but I don’t remember Scithers being fired. A bigger issue was that Asimov’s had a rep of being for kids and a more adult slant was wanted.
Scithers and Asimov were exceedingly old school and both liked Analog-style fiction. The later editors pushed more sophisticated literary f&sf. They won zillions of awards but the circulation dropped after Scithers.
Dr. A would have been pissed at you. I got him to autograph the cover of the Galaxy that contained “The Martian Way” with his name misspelled. He was still pissed at Gold over 20 years later.
Asimov wrote a intro to the first edition, saying what type of stories he would have. Sure, I can accept Scithers was doing all the heavy lifting, but as you said, to start those were the kind of old-school stories the 'zine started with.
I don’t consider those later stories to be “more sophisticated” or more literary. Just bad and boring.
Many people agreed with your opinion.
Nevertheless, the stories were objectively more sophisticated literarily, regardless of their value.
I’ve subscribed to The New Yorker since September, 1969 my freshman year in college. Can’t quit now!
What magazine have I stuck with the longest?
45 ACP from my Colt M1911… oh wait a sec…
Vintage Guitar. Don’t even play anymore but read VG cover to cover. I don’t know for sure when I subscribed but it was in VG’s early days.