#I can also recommend series with similar themes or other good post-apocalypse manga (although they are pretty different tonally from 7seeds)

[7fuckingidiots]

Have you seen the anime? I want more 7seeds but i'm scared it's gonna suck so so bad 😞

I have not watched (most of) the anime and I also fear it. I found 7seeds through a video by Colleen's Manga Recs that talks about how the anime fucks up immediately (butchering my girl Natsu's characterization. not giving semimaru an accent in the dub. showing team summer a waking up without the context of hail of corn. all in the first episode.). I watched the first episode and she was not lying, they really did fuck up. Watch it if you want to (I probably will eventually, just to form a full opinion on it) but be warned.

You can watch the video I mentioned here. I also recommend reading the 7seeds gaiden if you haven't already. It's some post-canon stories, about 4 chapters if I'm not mistaken. Beyond that there's not much content out there, but I'm always willing to chat about it, as are many other fans, I'm sure.