So I haven't read it yet but I really want to.
So they are a blonde x black haired combo, and from what I remember the black haired guy has this black claw marks to its neck (like its showing that he's a tiger(?) i guess) and they are both bulky like REALLY MUSCLY.
And they have a cute son, but from what I've read somewhere is that it's not an omegaverse, but the son is theirs.

A good story with a good jealousy arc from the ml. thank you!!
You give me one so we can gauge what you want!
something like the honey bear 2nd couple (but its more like a chasing arc)
Or something like in "be my baby" when the ml thought mc have a baby with another person (its short but I like the subtle ache it gave me HAHA)
I like it when ml is very jealous and will try to chase the mc something like that (like they know they can't control the mc)
https://www.mangago.me/read-manga/you_are_my_world/
https://www.mangago.me/read-manga/i_want_to_be_deceived/
thank you so much guys!!