Out of those that involve kids, for me this one is the best http://www.mangago.zone/read-manga/hinadori_wa_shiokaze_ni_madoromu/
Highly recommended!
These are some of my all time favorite mangaswhy not try reading them? Who knows you might find something you like and if so I am so happy I could help. Btw the kids are freaking ADORABLE! http://www.mangago.zone/home/mangalist/345255/
http://www.mangago.zone/read-manga/tadaima_okaeri/
its so adorable and it makes my face go uwu so I highly recommend!! ε=ε=(ノ≧∇≦)ノ
check out my list
http://www.mangago.zone/home/mangalist/79151/
Hey can someone please recommend some yaoi manga that involves a kid, or just any good ones, will be very appreciated :)) (=・ω・=)