Are there any yaoi where the uke approaches the seme first?

http://www.mangago.zone/read-manga/yoidore_koi_o_sezu/ is the first one that comes to mind.

Also http://www.mangago.zone/read-manga/shizuku_hanabira_ringo_no_kaori/ and http://www.mangago.zone/read-manga/yume_musubi_koi_musubi/

http://www.mangago.zone/read-manga/toiki_yori_mo_yasashii/

http://www.mangago.zone/read-manga/shinnyuu_kinshi_no_koi/

http://www.mangago.zone/read-manga/otameshi_delivery_lover/

http://www.mangago.zone/read-manga/kiss_ja_tomaranai/

http://www.mangago.zone/read-manga/warui_yume/

There's probably more but this one's the first to come to mind
http://www.mangago.zone/read-manga/honto_yajuu/

Thanks