Does anyone know the links or jap names of the ones at the end of the chapter?

https://yaoi-chan.me/online/496559-kaniteki-pervert-romance_v1_ch1.html

Here's one but in russian, also you can find those mangas in futekiya i think (using english titles)

You can find them all on the BL website with a monthly membership fee that’s starts with fut and ends with ekiya. Free for May.