Was there any One Piece Magazine that had any interesting information?
The only ones that I can think of were Magazine volumes 4 and 5 because of the Charlotte Family and all the islands of Totto Land.
Excluding the df, piece of dream, and manga
And keep in mind all opm are close to 200 pages
This one has 5 pages of editor interview, which is a decent read and 14 pages of location sketches (only 2 pages are completely new, but a collection isn't bad)
One of the best part of Magazine 13 are the two posters that come with it and I'm not joking. But it also contains the full storyboard of chapter 1000 and a Q&A where Oda goes over many little things of the chapter, easily top 3 section in OPM history.
Magazine 12 ASL, pretty shit, special booklet Luff and creator's notes are the only highlights
Magazine 11 power of words, I literally can't remember shit from this volume lol
Magazine 10 reread recommendation, thought this would be a turd level volume and was happily surprised. They had some Japanese youtubers' help, and their list of every little significant stuff in every arc is amazing, definitely helpful for a series this long.
Magazine 9 Odas designs, some look into Oda's personal interest, rare sketches of a section of the story, world map, making of a volume of OP Manga etc
Magazine 8 OP generation, sketches of Teach's mom and sisters, timeline of OP world, sketches of the worst gen (mostly old ones)
Magazine 7 Stampede, a nice alternative for people who can't get their hands on volume 10089
Magazine 6 Wano, sketches of the NUE special, designs of Denjiro, Kanjuro, Raizo and Kin'emon
And the incredibly disappointing blade encyclopedia