here's my list http://www.mangago.me/home/mangalist/70782/
you can take a look :)
I hope it'll help you
I hope this is what you mean. ^^
Shoujo: http://www.mangago.me/read-manga/love_so_life/
http://www.mangago.me/read-manga/flat_aogiri_natsu/
Yaoi: http://www.mangago.me/read-manga/takaga_koidaro/
Prequel focuses on parents http://www.mangago.me/read-manga/koishite_daddy/ sequel focuses on the children: http://www.mangago.me/read-manga/love_kids/
http://www.mangago.me/read-manga/sannin_gurashi/ Siblings, not incest.
Gakuen Babysitters: http://www.mangago.me/read-manga/gakuen_babysitters/
Chichikogusa: http://www.mangago.me/read-manga/chichi_kogusa/
Flat: http://www.mangago.me/read-manga/flat_aogiri_natsu/
Love So Life: http://www.mangago.me/read-manga/love_so_life/
Aka-chan to Boku: http://www.mangago.me/read-manga/aka_chan_to_boku/
http://www.mangago.me/read-manga/sorenari_ni_shinken_nandesu/
this too. It's a very touching and sweet yaoi
Try "usagi drop". It's about fatherhood
it can be about the kids and their parents or kids and other kids or about kids and their older siblings please help me and thank youヾ(❀╹◡╹)ﾉ~