Omega to Akuma no Sefure Jijou
An omega who works in a host club, tries to summon a demon to help him fullfil his wish of becoming a number one host. He summons an incubus, the incubus needs to impregnate him in order to fullfil his wish, but the omega refuses to be impregnated and demands his wish gets fullfilled. The demon's sperm works wonders on the omegas body, so he still gets his wish fullfilled, however since the demon can't impregnate him he starts to vanish.... Very cute, interesting plot, a love story between a demon and an omega.
Romantic Joutou
An omega who wants to be cherished and loved by his future partner, tries to look for an alpha that matches his ideal, all while having a friends with benefits relationship with his beta childhood friend, all because the supressant medicine doesn't work during his pregnancy. He jokes about wanting to marry his beta best friend if he were an an alpha. I loved it.
Tada no Renai Nanka de Kikkonai -Kojirase Joushi to Fechina Buka-
Kurui Naku No Wa Boku No Ban
i DUNNO WASn't my cup of tea. About an alpha that starts working at a new company, realizes that his boss is an omega, that also sleeps around to get to the top.
Gozen 0 Ji no Ookami Koushi
Meh, basic. two stories, the first one between a pofessor and a student and the second one is between step brothers in the yakuza clan.
Dark Fall