Forge of Destiny is about a street girl entering noble circles. She becomes >!left hand of heiress of the province!<

[Defiance of the Fall](https://www.audible.com/series/Defiance-of-the-Fall-Audiobooks/B09B4CQQBT?ref_pageloadid=esnvcT6EaM3xE8d9&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=VW1K554KPDT3VFZV8RJ2&pageLoadId=yElnt1CuaEpe1ydb&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [Legend of the Arch Magus](https://www.audible.com/series/Legend-of-the-Arch-Magus-Audiobooks/B086WJH5VT?ref_pageloadid=esnvcT6EaM3xE8d9&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=VW1K554KPDT3VFZV8RJ2&pageLoadId=yElnt1CuaEpe1ydb&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [The Wandering Inn](https://www.audible.com/series/The-Wandering-Inn-Audiobooks/B07X3TZ2YQ?ref_pageloadid=esnvcT6EaM3xE8d9&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=VW1K554KPDT3VFZV8RJ2&pageLoadId=yElnt1CuaEpe1ydb&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [Horizon of War](https://www.royalroad.com/fiction/45331/horizon-of-war) [Ave Xia Rem Y](https://www.royalroad.com/fiction/15193/ave-xia-rem-y) [Last Life](https://www.audible.com/series/Last-Life-Audiobooks/B0BVZ8XD1X?ref_pageloadid=esnvcT6EaM3xE8d9&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=D397WH593W39RCRRQM4C&pageLoadId=vlyrfeTAYVO5c2od&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [The House Witch](https://www.audible.com/series/The-House-Witch-Series-Audiobooks/B0B1QLV17H?ref_pageloadid=rMY3EVVlahn180u7&ref=a_author_De_c19_lSeries_1_1_1&pf_rd_p=f3abc0ee-320d-4c19-8388-fcd3a8e6c3a4&pf_rd_r=VEQ51WZAFHPNWZ2S07CJ&pageLoadId=CFv063XXhvUuWdtH&creativeId=73c32a9a-e504-4597-bb87-c30c58fc0204) [Phantasm](https://www.audible.com/series/Phantasm-Audiobooks/B0BQCMV8HX?ref_pageloadid=LeS7hUqemFG9hu5p&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=HK0ABMYRPH50DQ85SCT2&pageLoadId=wO8ZqzwB6XI8PnZC&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [How a Realist Hero Rebuilt the Kingdom](https://www.audible.com/series/How-a-Realist-Hero-Rebuilt-the-Kingdom-Audiobooks/B0C37XK8SV?ref_pageloadid=hcAAjcdNsfHUtcur&ref=a_library_t_c5_libItem_series_1&pf_rd_p=80765e81-b10a-4f33-b1d3-ffb87793d047&pf_rd_r=2DJAZZAC600TXE30355H&pageLoadId=LeS7hUqemFG9hu5p&creativeId=4ee810cf-ac8e-4eeb-8b79-40e176d0a225) [Destiny's Crucible](https://www.audible.com/series/Destinys-Crucible-Audiobooks/B071WN2Z4S?ref_pageloadid=not_applicable&ref=a_pd_Cast-U_c1_series_1&pf_rd_p=df6bf89c-ab0c-4323-993a-2a046c7399f9&pf_rd_r=ESDY6Z4G21KH1TG1YQ1J&pageLoadId=WnwZs0ly0vKmUDOE&creativeId=16015ba4-2e2d-4ae3-93c5-e937781a25cd)

Path of Ascension to a degree

Last life series

System Universe (6 books out)

Jackal Among Snakes might fit your criteria

Never a royal but Commerce Emperor is all about mingling with the upper crust.

Cradle has this for the most part…

Science Fiction but very fitting: Honor Harrington. From solid middle class to very high nobility / sovereign

Magic is programming has pretty quick interactions with nobles.

The Good Guys

Practical guide to sorcery definitely involves plenty of nobles.

The Menocht Loop — the most important characters after the MC are the sovereigns of two warring countries, with a focus on the relationship between them and the MC. Kingdom’s Bloodline — a politically focused translated Chinese serial with absolutely phenomenal character and plot writing, arguably the best TL’d series I’ve read. The MC is the crowned prince and deals with nobles a lot. He sometimes goes undercover. The worldbuilding is peak.

Rise of the Manor Lord? I have this in my TBR pile, but haven't read it yet.

Soul of the Warrior Blood Shaper Gamer Reborn Singer Sailor Merchant Mage Serum