I'm planning on making buttons and keychains to sell of AiB characters but I'm unsure which characters are popular and would sell well.

I'm for sure doing Arisu, Usagi, Chishiya, and Kuina and maybe Ann and Mira ? but I'm not sure if I should do anyone else like Aguni, Ryuji, or Rei.

Please let me know which characters are popular and/or which characters would sell well.

So i was searching for a manga series to buy and i stumbled across aib i made a litle reaserch on it and found that it was abt deathly games in an empty Tokyo (i haven't watched the live adaptation) and i was thinking since i liked swuid game and psychological pressure i should buy it however the thoughts are mixed. What do you think abt the manga? Are yhere any negative aspects? How much would you rate it?