Yaoi marriages?

I only know of Haru Wo Daite Ita. They went overseas and got married.

http://www.mangago.zone/home/mangalist/8381/
the couples that actually have a wedding ceremony are number 1,6,12,15,23,24

http://www.mangago.zone/read-manga/yome_ni_konai_ka/ vol.2
http://www.mangago.zone/read-manga/koi_wa_maiorita/
http://www.mangago.zone/read-manga/wild_rock/
http://www.mangago.zone/read-manga/royal_fiance/
http://www.mangago.zone/read-manga/ijimetaihodo_aishiteru/ ch.2
http://www.mangago.zone/read-manga/muko_x_muko/
http://www.mangago.zone/read-manga/kizoku_no_aoi_kuchizuke/tr/47976/page/127/

Check out KyoZaNa's list... http://www.mangago.zone/home/mangalist/2681/