Ok so I found the author it’s Magmawrites for the empty fic and sea21 for the other one I mentioned

Capncrunchy had omegaverse family fics but maybe you read those too they are popular

Slut_4_Jagermeister Has some good fics too

D8ono is popular too I think with omegaverse not my favorite writing style/dead dove/too much geto suffering 🥲 but maybe has something you like

Hope you find something you like 😊