Help - Yaoi - "Seke"

Can someone please recommend or give me a Manga, manhua, manhwa, and webtoon about Yaoi. The theme could be "Seke. " The Manga should be like Neko x Neko whereas their roles could switch, which is called reversible couple. Aside from that, I also accept big man bottom and small guy top, or f*ing a big guy along the lines. Thank you very much! (●'◡'●)ﾉ