What should I read next after The Greatest Estate Developer?

'Gintama'-- it's a manga, so it's pretty long, but it has the best comedy, has pretty good action scenes and has the found family trope. It also has an anime which is even better

How about these??

https://www.mangago.me/read-manga/chronicles_of_the_martial_god_s_return/

https://www.mangago.me/read-manga/delivery_man_from_murim/

https://www.mangago.me/read-manga/trash_of_the_count_s_family/

And if manga is ok:
https://www.mangago.me/read-manga/mairimashita_iruma_kun/
https://www.mangago.me/read-manga/maou_jou_de_oyasumi/
https://www.mangago.me/read-manga/magico/
https://www.mangago.me/read-manga/spy_x_family/
https://www.mangago.me/read-manga/fairy_tail/
https://www.mangago.me/read-manga/akatsuki_no_yona/
https://www.mangago.me/read-manga/pandora_hearts/

I hope this helps and you enjoy dear!