Hey I'm new to the site but saw similar posts looking for untranslated manga. However, I didn't see any that covered what I wanted to read and translate.

I am looking for untranslated manga that I can buy myself (on japanese sites if need be) and scan into my computer for fun and practice in translating and lettering.

Here's my preferences for titles:
-At least one full volume published
-Never translated or localized
-Cancelled early (subjective, I know)
-Aimed towards males (shounen or seinen)
-Published no earlier than 1980
-Is good! (VERY subjective, I know)
-Single chapter one shots are ok, but there has to be some way to get ahold of the magazine it was published in.

Thanks!

Not sure what you mean by cancelled early (like axed or discontinued? If so, ignore my post)
Lovely Strange Dark has a list of potentials that might interest you. They tend to have some really interesting gems
https://lsd.mangadex.com/projects/potential/
Do a quick ctrl+F search for shounen or seinen. They have summaries for each one and how long they are.

Majority of the series on that list have never been scanlated before (the ones that are partially scanlated say "Summary from Batoto" and it only applies to like 4 of them in that list)