there's a few ongoing ones and completed ones that might do it for you:
S Flower, Sadistic Beauty, and No Holes Barred are the kinkiest/raunchiest available rn and are the go to if u want very Explicit domination via sex. if u want monogamy and or more romance in ur sexy comics then Just Give it To Me, The Blood of Madame Giselle and Hubby Bunny are good choices. i havent read Hubby Bunny yet but i saw pics that make it seem like the wife gets to top her husband at least sometimes. there's also non smut comics that have Woman on Top themes in varying degrees of obviousness: The Sensual M, S Watari San to M Mura Kun, Bloody Sweet, Forever Mine, She Hates Me and Kimi Wa Petto the domination here is either only implicitly sexual or completely non sexual. Now to be clear I havent read most of these (yet!) but ive heard good things about them from people i trust and or they just look promising. I'm told Broken Melody and The Lady and her Butler could possibly fit into this genre of Dominant Woman in a het relationship but again not in a sexual sense (since they are not smut comics).
Im a big fan of lady doms too btw. in any story, smutty or otherwise but its generally considered a Deviance from the norm so its a fetish or a kink and not something u can find very often or easily outside of rly kinky smut comics, and even among those it is less common than dominant men in het or queer relationships. Anyway, Before I go i have two more suggestions: Sexercise is a harem smut manhwa that isnt about a femdom specifically but does have a relationship between a more sexually dominant/experienced woman and her soft very devoted and more innocent boyfriend (they are in a non monogamous relationship tho, in case that matters to you), no pegging so far tho alas! and this doujinishi was linked to me in the past but it has pegging so enjoy: https://nhentai.net/g/272937/ (its a one off tho)
<3 ur welcome. also gonna add The Missing O to the list cause one of the supporting couples (Areum x Okjae) is very femdom and cute boy sub. (he's shorter than her and she has him dress up as a girl cause that's a fetish she has in general). that said Missing O is just a great story in general. smut but with proper romance! and a fun ensemble cast.
i read it here: toonily com / webtoon / missing-o
its a great website to read on ur browser but its impossible to read on ur phone cause the ADs are wild. there's prob other websites that have it too but thats the most accessible one to me. (i like okjaexareum but they arent rly a couple more like fuckbuddies except only the woman seems to know that lol, and its sad. i like my bdsm with some proper romance darnit!)
someone pleasee recommend me a story like this where the woman tops the boy i sooo need it