probably most of those that came from the new anime such as
Trinity Seven - Arata Kasuga & his trinity seven waifu ( those will include Arin Kannazuki, Lilith Asami, Yui Kurata, Lieselotte Sherlock, Selina Sherlock ( the special one))
Inou Battle - Jurai Ando & the literature club ( includes Tomoyo Kanzaki, Hatori Kushikawa, Chifuyu Himeki, Mirei Fudo ( not part of the club but i like her being with Ando too) - sorry i didn't include Sayumi, not that i hate her its just she wasn't my type hehe
Ushinawareta Mirai - Akiyama Sou & Kaoru Sasaki, Airi Hasekura, Nagisa Hanamiya, Yui Furukawa
Denki Gai - Hio - tan x Director
Gundam Build Fighters Try - Sekai Kamiki x Fumina Hoshino, Fumina Hoshino x Yuuma Kousaka, Mirai Kamiki x Yuuma Kousaka
Girlfriend Beta - Akane Sakurai x Kokomi Shiina, Erena Mochizuki x Kokomi Shiina, Fumio Murakami x Erena Mochizuki, Kokomi Shiina x Chloe Lemaire
Amagi Brilliant Park - Kanie Seiya x Isuzu Sento/Latifah Fleuranza
Grisaia no Kajitsu - Yuji Kazami x Michiru Hatushima/Yumiko Sakaki/Sachi Komine/Makina Irisu/Amane Suou
Akame Ga Kill - Tatsumi x Mine, Tatsumi x Akame
so far those were the ones for now, but i think there's still more :/