Etrian Odyssey Untold: The Millennium Girl - MangaDex
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This manga is based on the 3DS game of the same name. Highlander Lindis Farne's help is requested in the far away city of Etria, where an organization called the Radha hires him to explore the Yggdrasil Labyrinth and discover the cause of local earthquakes. Soon, the highlander discovers an amnesiac girl in a futuristic tube inside of a run down ruin, and meets fellow investigators from the Midgard Library.

For a start I guess I’ll just share the EOU manga, which is being translated by aariachang24. You can submit fanart or memes (I don’t know if you can do that via mangadex though, so here’s the Reddit post). https://www.reddit.com/r/EtrianOdyssey/comments/13jo6ax/etrian_untold_manga_guy_here_give_me_fan_art/

There’s also the webcomics and the EO2 manga: https://mangadex.org/title/2c1ed758-4d64-4735-949e-e5148afa389e/sekaiju-no-meikyuu-comics

https://mangadex.org/title/c51bfb68-f09c-4fdf-8545-b7731a24eea6/etrian-odyssey-ii-the-snowflake-girl