
I feel ya. AOT is rough. This one just recently completed I really liked it.
http://www.mangago.zone/read-manga/sakaki_kun_no_flight_plan/

Also check out my list, they're my fav's. Lots of black and whites.
http://www.mangago.zone/home/mangalist/940609/

http://www.mangago.zone/read-manga/the_keystone_romantic_combination/?ZjaG -i loved this one so much
http://www.mangago.zone/read-manga/path_to_you/
http://www.mangago.zone/read-manga/puppy_love_eumnya/
http://www.mangago.zone/read-manga/till_our_lips_touch/
http://www.mangago.zone/read-manga/wistful_summer/
http://www.mangago.zone/read-manga/dress_him_up/?u1GF
http://www.mangago.zone/read-manga/the_baker_on_the_first_floor/?M3gY
http://www.mangago.zone/read-manga/can_t_take_my_eyes_off_you/?Ceem
http://www.mangago.zone/read-manga/let_s_go_asmr/?Hdog
Also im pretty sure our versions of long might be different. All of these are really good tho

Umibe no Etranger.
0 - Mastapiece : http://www.mangago.zone/home/mangalist/476814/
Can anyone rec me nice completed BLs that are not too long bc i'm devastated over AoT and i want to relieve this pain even a little bit or else i'm gonna lose my mind