Hey guys! I was wondering if you guys can recommend me some shounen-ai mangas to read. Any shounen-ai that you've read and think it was good can be okay. I really want the manga to be more than 1 volume long, but it's okay even if it's short. Please check my completed list for the ones that I've already read. I'm warning you now, my list is REALLY long. Thank you in advance! 😁

Not in any particular order, and some of them are softcore yaoi. I never read smut, though, so none of that.

Golden Days
Yami no Kodou
Anything by Ishihara Satoru
Koori no Mamono no Monogatari
Acid Town
Hanamatsuri
Makeinu no Nandemoya
Marginal
C.O.Y.
Togainu no Chi
Eerie Queerie!
Hanakisou
Umi no Mieru Yane
Silver Diamond
Kaze to Ki no Uta
Hana wa Saku ka
Komatta Toki ni wa Hoshi ni Kike!
Patalliro!
Kinou Nani Tabeta?
Koi ga Bokura wo Yurusu Hani
Tsubaki Biyori
Oyajina!
Shingakkou - Noli Me Tangere
Canis
Yasashii Ryuu no Koroshikata
A to Z
Kyou kara Ma no Tsuku Jiyuugyou!
Thomas no Shinzou
Gakkou no Sensei
Saiyaku wa Boku o Suki Sugiru
Shades Captor
Midnight Sun
Saka no Ue no Mahou Tsukai
G-Defend (I personally dislike this, but...)
Feng Yu Jiu Tian -- This is a Chinese BL novel, though. Also: Cold Sands (Novel)

Sorry if you're already reading any of these. I did check your complete list, but not the other two.

Thank you very much, calstine! Much of what you suggested were on my wish list. 🤣
I'll start off with those first and then read the rest. 😀
Any more suggestions would be much appreciated!

Once again, I only checked your complete list. Also, I can't really attest to the quality of some of these manga or say I recommend them. Most are pretty good, imo, but there are some here I haven't read yet, myself. I'm simply rec'cing you all the >1-volume BL with some manner of plot (though there're a few single-volume titles, as well).

Let Dai
MW
Oz to Mahoutsukaitachi -- The releases aren't updated on MU, though. You'll have to check the scanlators' LJ.
Baroque Chrysalis
J no Subete + Barairo no Hoo no Koro
Vassalord
Kyuuketsuki no Shouzou
Bokutachi Otokonoko
Jihai *
Rasen no Kakera *
New York New York
101 Hitome no Alice *
Aegis
Bloody Mary (SAMAMIYA Akaza) *
Clean a Wound *
Osora de Garden *
Nekoka Danshi no Shitsukekata
Daten no Tsuki *
Romance no Hakoniwa
The Summit
The Night Beyond the Tricornered Window *
Torikago Syndrome
Seikimatsu Darling
Hyakunen Kesshou Mokuroku
Aoi Hitsuji no Yume *
Docchi mo Docchi *
Zetsuai + Bronze
Match Uri + Yagi-san Yuubin *
Wild Adapter
Kuro (CHAYAMACHI Suguro) * & Shiro (CHAYAMACHI Suguro) *
Ningen Gakubu *
Yagyuu Hijouken Samon
Loveless
DRAMAtical Murder
I-Ren
Hi Izuru Tokoro no Tenshi
Border (KODAKA Kazuma) *
Core Scramble *
Antique Bakery
Into Illusion *
Tsurugi to Kiri *
Tanbishugi
Tokyo Shinjuu (Totempole)
Shisei no Otoko
Yume no Kodomo
Coponicus no Kokyuu
Kamitsukitai
Akaneshinchi Hanaya Sange
Tantei Aoneko
Sakende Yaruze!
Boku wa Konomama Kaeranai
Ai no Kusabi
1999 Shanghai
Mi Diaburo
Bokura no Hentai -- Not sure whether you'll like this one, because the guys are transvestites. If that's not to your taste, feel free to ignore.

The starred (*) series are not completely scanlated, but they are licensed.

Edit -- Oh, and you really must try Eroica yori Ai o Komete if you haven't already. It's not BL per se, because while the male MC is constantly hitting on the other male lead, the latter's completely unreceptive to any of his advances (and not in the dumb yaoi way, either - he's genuinely not interested), but definitely worth a read. It's episodic, too, so even if the scanlation's incomplete and will probably stay that way forever, I still recommend you try it.