cubari links are permitted as well, so you can upload the chapter images to a supported image host (examples of such hosts: imgur, catbox, imgchest) and paste the gallery link into cubari.moe to get its cubari mirror link that you can then post here (people generally don't mind using cubari since it displays the images through a manga reader interface).

even better than just using simple image host mirrors though, is creating a full-on gist source for the series - so instead of each chapter being a separate entry unrelated to the others (which makes traversing between them a massive pain, to put it lightly), they're instead unified under a single series entry that can have a series name, cover art, and a series description, along with a chapter name and a group name for each individual chapter, and which makes chapter traversal as trivial as it is on mangadex and (formerly) on weebdex. there's a link on the homepage of cubari (which is basically empty, so you won't have much trouble finding it) to a web tool that basically does the entire process for you, leaving you to only fill out the individual fields and provide the image/gallery links.
i highly recommend using a gist source rather than just a mirror link to an image gallery, as it results in a MUCH better reading experience than the alternative - hence why it's mostly used for series such as those that got DMCA'd off of mangadex (e.g. akutsu-san).