SIDE COUPLE APPRECIATION - BL SPINOFFS

1. Seok x Kiwoom - s1 (ch 1-38)

2. Hyun (main couple's friend) x Jaeha (Kiwoom/Hyun's ex-friend) - s2 (ch 38-81)

3. Seolhan x Seungha (friend of couple 1 and 2) - s3 (ch 97- )

JAEHA MY PRECIOUS BEAN , literally I forgot all about the main couple lol the side couple is my favorite

1. Owada x Katou
original: Ushiro no Seki no Katou-kun
sequel: https://www.mangago.me/read-manga/tonari_no_class_no_katou_kun/

2. Mimasaka (Katou's childhood friend) x Satou
spinoff: https://www.mangago.me/read-manga/mimasaka_kun_to_mayoeru_kobuta/

1. Shun x Ryouta
original: Kimi wa Alpha

2. Kashiwagi (Shun x Ryouta friend) x Aizawa
spinoff: https://www.mangago.me/read-manga/you_re_an_omega/

3. Seiya x Asahi (Aizawa's classmates)
spinoff of 2: https://www.mangago.me/read-manga/kimi_wa_beta_pcbs/

1. Owada x Katou
original:https://www.mangago.me/read-manga/ushiro_no_seki_no_katou_kun/
sequel: https://www.mangago.me/read-manga/tonari_no_class_no_katou_kun/

2. Satou x Mimisaki
spinoff: Mimasaka-kun to Mayoeru Kobuta

1. Mitsuru x Anna
original: Smoky Nectar
sequel: https://www.mangago.me/read-manga/smoky_nectar_renew/

2. Youjirou (murderer in Vol 1/bratty second son of the Kuramochi Family) x Isshin
spinoff: https://www.mangago.me/recommend-manga/domestic_beast/

original: https://www.mangago.me/read-manga/hydrangea_cage/
spinoff: Secret Note

1. Soushi x Nanao (old classmates)
original: https://www.mangago.me/read-manga/midarana_omega_wa_koi_wo_shinai/

2. Isezaki x Seno (main couple's old classmates)
spinoff: Aware na Beta wa Koi wo Shiranai

1. Satoru x Ryou
Original + Sequel: Mr. Rain + Mr. Hatter - vol 1-3

2. Nobu, Sam, Hal (Ryou’s colleagues)
Spin-off: Mr. Speaker - vol 4-7 [vol 5-7 UNTRANSLATED]

but there's an official ENG translation (up to vol 3), so you can wait for it to catch up

1. Maehwa x Jaewon - s1 ch 1-44
2. Guk x Yeonan - s2 ch 45-94

s3 - has both couples R18

official ENG: https://www.webtoons.com/en/drama/our-paradise/list?title_no=4740

1. Dongyun x Xiaofei (coworkers at company) - s1 ch 1-32
prequel: https://www.mangago.me/read-manga/the_day_before/

2. Chunlei (Dongyun's brother; company VP) x Lin Shi (company intern) - s2 ch 33+