This site contains... a lot of pages on the Madoka Magica universe. Can anyone tell me the chronological order of the mangas?

Here's the list from this site:

[Shinyaku] Mahou Shoujo Oriko Magica - Sadness Prayer
Café Grief Seed e Youkoso!
Fuwatto Madoka
Gekijouban Madoka Magica Magica - [Shinpen] Hangyaku no Monogatari
Kanameke
Kuru Homu
Madoka Engawa
Magia Record: Mahou Shoujo Madoka☆Magica Gaiden
Mahou Shoujo Homura Tamura - Heikou Sekai ga Itsumo Heikou de Aru to wa Kagiranai no da
Mahou Shoujo Kazumi Magica - The Innocent Malice
Mahou Shoujo Madoka Magica
Mahou Shoujo Madoka Magica - Homura Revenge!
Mahou Shoujo Madoka Magica - Majuu Hen
Mahou Shoujo Madoka Magica - The Different Story
Mahou Shoujo Madoka Magica dj - Tomoe Mami 1X Years Later: Mami-san Around 30 Years Old Collection
Mahou Shoujo Oriko Magica
Mahou Shoujo Oriko Magica - Betsu Hen
Mahou Shoujo Oriko Magica - Sadness Prayer
Mahou Shoujo Suzune Magica
Mahou Shoujo Tart Magica - The Legend of "Jeanne d'Arc"
Mahou Shoujobu Madoka Magica
Mitakihara Anti-materials
Mitakihara Touchien Mahougumi
Pom Magi
Puella Magi Madoka Magica Comic Anthology
Sutema!
Tomoe Mami no Heibon na Nichijou

I don't think there is an exact timeline as some of these are self contained stories (That or side stories and what ifs to the original show.) that have no proof to co-exist and would make little sense in the grand scheme of things.

(Best example is Oriko Magica. Given the exclusive characters in that story and their motivations/roles it only makes sense for them to mainly exist in that manga alone)

So I'd say watch the anime if you haven't yet and hop into whichever story grabs your attention. You should still be able to follow it.

Thank you for our encounter~