Hi,
I am looking for a romance manga the have very poor girl ( with debits ) and rich guy
Or very poor maid work in a house ( not hotel or workplace ) of rich guy.
No for : oneshot, Ai, yuri, hentai ,action,supernatural,,advanture.

There is no problem if the manga is old.
There is no problem if its manhaw or webcomic insted of manga.

Thanks ?

The only one I can think of right now is Tennenkei Ouji but you might want to do an advance research ([url]https://www.mangaupdates.com/series.html?act=genresearch[/url]) with the tags poor female lead maybe in conjonction with rich male lead or Rich Lover/s or rich protagonist and cross out the genres you don't like. You can also check out the tag Rich Person Dating Poor Person.

Maybe Tsubaki-chou Lonely Planet? The girl is in debt and works as a housekeeper for the main guy, but I'm not sure if he's rich.

Edit:
You might also enjoy Tendou-ke Monogatari, it fits your second request of poor maid girl/rich guy.

Boku no Ie ni Oide
Kuro Hakushaku wa Hoshi o Mederu
Last Game
SP x Baby
Hana Yori Dango

These are all (historical) maid/rich guy romances:
Emma
Ibara no Okite
Toukyou Lastochika

And some others:
The Prince's Cactus
Taisho Wotome Otogibanashi
Chikutaku Bonbon

I already read them :/ more please ?

Gokuraku Seishun Hockey Club
Grand Sun
Hana ni Arashi
Itazura Ouji
Kimi wa Boku no Toriko Nare
Kiss/Hug
MeruPuri
Nanaco Robin
Ouran High School Host Club
Tennenkei Ouji

more ?

Nanaco Robin
The Prince's Cactus
Tamago no Kimi.
ReRe Hello
Last Game
Nanaco Robin
Siesta (if you dont mind manhwa)
Hana Yori Dango
Beauty Pop
I hope i was helpful ^^

Thanks for all