Steins;Gate - Comic Fragments: Heiko Sekai no Synopsis - MangaDex

Translated] The Great Proposal Battle : r/steinsgate

Araki Fuu - MangaDex

Whoopsie doopsie [Stein's Gate manga] : r/steinsgate

Satoshi - MangaDex

5Pb. - MangaDex

Steins;Gate: Heiji Kyokusen no Epigraph

Hazumi Nariyuki - MangaDex

Kaitei Shuujin - MangaDex

Found this cute fanmade Steins Gate manga on pixiv. I translated it from an app, so it's not all good, but is enough to convey what they're actually saying. Link to manga

5Pb. - MangaDex

Steins;Gate (visual novel)/Walkthrough, Steins;Gate Wiki

Sekaisen Hendouritsu X. 091015%, Steins;Gate Wiki

Steins;Gate - Shijou Saikyou no Slight Fever - MangaDex