I need some wholesome BL or Yaoi to read

Umm... I wanted to ask what is wholesome??.. like the main jist of it ??..
I feel I know little bit of what it means .. but at the same time I don't.. if someone can ,plz explain .

It just means cute and sweet

OH YEA “RAINBOW CITY”
SO BASICALLY,
It’s post apocalyptic setting in which a company had decided to release a virus to sell vaccines Turing everybody into a zombie. The virus started to mutate this rendering the vaccine useless and the world was declared for a state of emergency. As nations fell they banded together in over to stop the spread of the virus, creating what is the main setting of the story “rainbow city” in Seoul Korea which was a city mainly controlled by the government split into seven sections to meamsure the zombie or “Adam” rate, with green being the safest and red being the most dangerous as well as military bases to to train and raise soldiers and hiring researchers in order to develop newer vaccines, but the problem was that the virus kept mutating and have already mutated 7 times rendering all the vaccines useless and the story goes from there. The only place unaffected by the virus was JeJu Island which is where the protagonist, Dr.SeokHwa, came from. A 34 year old poker faced genius researcher with a weak body that isn’t strong enough to even run, and had a strong obsession with rocks (reason will be revealed later) who once had been to rainbow city with his mentor but had returned back to JeJu Island to live a peaceful life was now needed to research the new variant. So the city sent soldier “Major Kwak SuHwan” to get him off the Island as well as the job of being the doctor’s personal bodyguard because Major Kwak Suhwan, being the strongest man in Rainbow city, barged into the red zone late at night without warning and caused a shit ton of chaos, massacring Adams just to fuel his alcohol addiction and was now given 2 options. 1. Get Dr.Seok off JeJu island and be his guard or 2. Go to the guardhouse which was basically a detention center for soldiers. Major Kwak, having the most fuckboy personality and was still reluctant to do it, manages to convince Dr.Seok to go back. However, he soon figures out the reason. Dr.Seok’s old mentor had been murdered in the base. With that, Dr.Seok starts to research the death of his mentor and starts to find things in Rainbow City that is not what it seems. WITH MYSTERY, LATER ON ACTION AND OFC HIS SOUR RELATIONSHIP WITH MAJOR KWAK TURNS INTO THE SWEETEST THING. RAINBOW CITY

ALSO, want good plot???? NEVER FEAR OUR LORD AND SAVIOUR CHAEPALI IS HERE
https://www.mangago.zone/home/mangalist/2854425/

https://www.mangago.zone/read-manga/my_guildmate_next_door_shortcut_scans/
https://www.mangago.zone/read-manga/merry_marbling/
https://www.mangago.zone/read-manga/ero_yume_aquarium/
https://www.mangago.zone/read-manga/twilight_sugar_cat/
https://www.mangago.zone/read-manga/koi_no_yuurei/
https://www.mangago.zone/read-manga/neko_no_tsuide_ni_otoko_wo_hiroimashita/
Tell me if u want more recs

Zero Day Attack
https://www.mangago.zone/read-manga/zero_day_attact/

The Spooky Love Tale of Gongchan Seol
https://www.mangago.zone/read-manga/tales_of_seol_gongchan/

No Moral
https://www.mangago.zone/read-manga/no_moral/

Cold-Blooded Beast
https://www.mangago.zone/read-manga/cold_blooded_beast/

Kang Yise's Happy Ending
https://www.mangago.zone/read-manga/kang_isae_s_happy_ending/