Okay so I haven't read any major yaoi with fetishes but here's the one I've read and I didn't pretty much like any of them but you could give them a try.
So far liking these ones:
http://www.mangago.me/read-manga/jackass_sawatte_ii_tte_dare_ga_itta_yo/
http://www.mangago.me/read-manga/ote_o_haishaku/
http://www.mangago.me/read-manga/tsumasaki_kara_aisarete/
Read but didn't like that much:
http://www.mangago.me/read-manga/michi_to_no_souguu/
http://www.mangago.me/read-manga/haisha_nante_kirai_da/
http://www.mangago.me/read-manga/canvas_ni_kuchizuke_o/
Also you could have a look at the list below.
https://www.mangaupdates.com/series.html?category=Fetish%252Fes&genre=Yaoi&exclude_genre=Doujinshi_Ecchi_Gender%2BBender_Harem_Hentai_Horror_Lolicon_Martial%2BArts_Mature_Mecha_Shotacon_Shoujo%2BAi_Shounen%2BAi_Yuri&filter=completed&perpage=50
https://www.mangaupdates.com/series.html?page=2&perpage=50&category=Fetish%252Fes&filter=completed&genre=Yaoi&exclude_genre=Doujinshi_Ecchi_Gender%2BBender_Harem_Hentai_Horror_Lolicon_Martial%2BArts_Mature_Mecha_Shotacon_Shoujo%2BAi_Shounen%2BAi_Yuri
Here. Go shopping--
http://www.mangago.me/home/mangalist/93704/
check mine http://www.mangago.me/home/mangalist/83448/
Give me your best Yaoi manga that includes a fetish! thanks~