Possible to get distribution option in sandbox to limit the spawns to kids rooms, toy stores or places like that? I keep finding manga in gas stations and small stores on the same shelves as barbecue sauce and toilet paper and it seems odd for 1993 Kentucky.

Sure! I'll add a separate sandbox option to list possible spawn room types, besides containers.

Latest update now features custom room and container selection in the sandbox options (as well as an option to ignore room restrictions if needed)

A couple suggestions to add at your convenience you may have already added some. Attack on Titan, That Time I Got Reincarnated as a Slime, and Vinland Saga. noragami, Tokyo ghoul, drifters, vagabond, the climber, Claymore, FMA, Hellsing/Hellsing ultimate, Blue exorcist,GANTZ,Monster, world trigger, to your eternity,Tokyo revengers, jujutsu kaisen, demon slayer, mushishi, solo leveling, the beginning after the end, ordeal, Devil man/Devil man crybaby,death note, bleach, blood lad, absolute sword sense, omniscient readers viewpoint. Again no rush this mod is already amazing

That was quite a task, but I believe I added everything you requested.
Feel free to check out my Patreon, by the way ;)
And a huge thank you for contributing your ideas to the mod!

I'd love to see Sailor Moon and Revolutionary Girl Utena added to the list. :)

Oh, I didn't see the second title request! Added it in as well.

I was so delighted to see All Purpose Cultural Cat Girl Nuku-Nuku on your list - that really took me back! I had two title suggestions for things that got localizations in the 90s - 'Nausicaa of the Valley of the Wind' and 'Battle Angel Alita.' Looking at my bookshelf like 'what do I have that's almost old enough to have a mid-life crisis with me' lol.

Added! For the Battle Angel Alita I also included Last Order and Mars Chronicle.

Please make this mod compatible with the popular "Has Been Read" mod. With over 2000 mangas this mod is even more practical than ever.