
Any BL where the ML are father and son?
(Ex: body complex, ennead)

https://www.mangago.zone/tag/Uke+is+in+a+relationship+with+seme%27s+father/ hopefully you find some here

the kang's yeesu
https://www.mangago.zone/read-manga/the_kang_s_yeesu/

Any BL where the mc is the seme??

https://www.mangago.zone/read-manga/high_clear/
https://www.mangago.zone/read-manga/yatara_yarashii_fukami_kun/
https://www.mangago.zone/read-manga/grab_the_stars/
https://www.mangago.zone/read-manga/terano_kun_to_kumazaki_kun/
https://www.mangago.zone/read-manga/bakashite_damashite/
https://www.mangago.zone/read-manga/zero_at_the_bone/
https://www.mangago.zone/read-manga/darlin_iikagen_ni_shiya_gare/
https://www.mangago.zone/read-manga/playtime_with_hakdo/
https://www.mangago.zone/read-manga/call/

I originally typed out a reply with links and many details but I accidentally reset the page and I can't bring myself to type it all over again so forgive me if I'm a bit lazier this second time around, okay?
Here's my list:
https://www.mangago.zone/home/mangalist/2460859/?filter=&page=1
For every story I clarify who tops and bottoms
So you can simply Search/go to find in page: 'MC (top'
(No closed parentheses, no quotations)
I include descriptions and warnings: here are a few examples!
https://www.mangago.zone/read-manga/futsuu_ni_koi_shite/One of the fluffiest manga you will find on this list. MC is an ordinary guy who is used to being overlooked and underappreciated, so when his coworker, ML, who seems to always be the center of attention asks him to work for him in a new startup project of his, he can't believe it. This is really sweet, and the characters have a lot of depth to them. The ML (bottom) is the CEO of the company and *spoilers* in chapter 5, he takes the initiative and is quite blunt about his desires.
https://www.mangago.zone/read-manga/shh_you_ll_wake_up_the_child/
MC (top, innocent-type) becomes a babysitter to help pay off some bills. The father of the child he's supposed to take care of, ML (bottom, cold and reserved) quickly becomes intimate with him. ML calls all the shots in the relationship and is always the one to initiate and take control.
Plus! ML is the CEO of his company and power dynamics/social status also play s role in their relationship (MC feels a bit insecure since he's a uni student, and he's very obedient)
Really easy and quick read

Anyone knows BL where the seme is shorter, cuter than the uke then BAM the semeness comes out

https://www.mangago.zone/read-manga/usachan_ookami/
https://www.mangago.zone/read-manga/otoshiana_ni_hamerarete/ (does have drugging + rape in it so beware)

https://www.mangago.zone/read-manga/uchi_no_tenshi_ga_kemono_deshita/ (ALL works by Mishima Kazuhiko are like this actually! check her work out)
https://www.mangago.zone/read-manga/neko_hame_usagi_chan_wa_gaman_shinai/
and that's it! i'm sorry for spamming, i'm on phone and this fucking page kept reloading and it deleted everything i wrote in my reply - so i had to post this in chunks.
What's your red flag as a reader?
Mine is I will always choose the black haired ML, even if he is the toxic one
Probably skipping parts I don’t want to see happen or skipping parts when a side character I don’t like shows up hahahha
Giving up on updates, in other words unofficially dropping some stuff, cuz I’m too lazy. I have too many stories that need catching up but not enough motivation, it’s an endless cycle </3
1. Bookmarking chapters only to abandon the story and never come back.
2. Feeling dread as soon as a female character appears in an isekai/fantasy. Why are they always written so terribly!? Of course, I read on because there are and may be exceptions (I love all the Dungeon Meshi and ORV girls, Shangri-La Frontier has some female characters I like too). But 90% of the time they’re all just… Fan service, MC’s stepping stone, a brat and so on. I often end up dropping whatever I’m reading for this reason…
idc how good the story is, if the art style is not my taste i'm gonna drop it w/o a second thought
Oh sameee; Art style/Visual appeal gets me started but the actual plot is what keeps me going