gimme your best underrated bl, tq(≧▽≦). I prefer manga but sure anything is fine.

boys love (jagal)
wolf in the house

http://www.mangago.me/read-manga/kekkon_suru_kamoshirenai_otoko/
Ameiro paradox (kinda)
Sky blue complex (kinda)
http://www.mangago.me/read-manga/kiyona_yubisaki_bukiyona_tsumasaki/
http://www.mangago.me/read-manga/wolf_in_the_house/?dr3W
On and off (kinda)
http://www.mangago.me/read-manga/a_b/mdx/d_chapter-1/
http://www.mangago.me/read-manga/voice_of_love/uu/voice_of_love-chapter-1
Unreachable
http://www.mangago.me/read-manga/voice_of_love/uu/voice_of_love-chapter-1
http://www.mangago.me/read-manga/semantic_error/
http://www.mangago.me/read-manga/kaeru_no_prince_sama/
http://www.mangago.me/read-manga/ore_to_joushi_no_kakushikoto/
http://www.mangago.me/read-manga/no_color/
http://www.mangago.me/read-manga/yamete_kudasai_mabushii_desu/
Two of my favourites:
http://www.mangago.me/read-manga/step_one/
http://www.mangago.me/read-manga/mihanada_pectolite/
You can check out my lists for more :
http://www.mangago.me/home/mangalist/323616/
http://www.mangago.me/home/mangalist/732123/

Usagi no mori

http://www.mangago.me/read-manga/komatta_toki_ni_wa_hoshi_ni_kike/
http://www.mangago.me/read-manga/canis/
http://www.mangago.me/read-manga/yasashiku_oshiete/
http://www.mangago.me/read-manga/outsider_communication/
http://www.mangago.me/read-manga/500_nen_no_itonami/
http://www.mangago.me/read-manga/until_i_meet_my_husband/
http://www.mangago.me/read-manga/a_declaration_of_revenge/
http://www.mangago.me/read-manga/gaman_nante_o_yoshinasai/
http://www.mangago.me/read-manga/the_essence_of_love/
http://www.mangago.me/read-manga/hana_tokidoki_kuma/

Manga:
http://www.mangago.me/read-manga/chotto_matte_yo_hanaya_san/
http://www.mangago.me/read-manga/blue_blue_blue/
http://www.mangago.me/read-manga/bokura_no_shokutaku/
http://www.mangago.me/read-manga/wadatsumi_no_yometori/
Webtoon:
http://www.mangago.me/read-manga/a_b/

http://www.mangago.me/home/mangalist/625264/