Yo bless this is list where I add http://www.mangago.me/home/mangalist/802700/

Cutting out well known popular ones and only including underrated for their opness
These ARE GEMS
PLEASE GIVE ALL THEM LOVE.. 90PERCENT OF THEM HAVE FL WITH BRAINS AND SOME WITH EVEN BRAWNS
PLZ RATE EM 5 STARS TY


Koushaku reijo no tashinami (strategist, politician)
My lord, the wolf queen (emperor female)
Golden haired wizard (competitor, best wizard to be)
Queen cecia's shorts (gender bend)
The Princess' spaceship (smart space warrior strategist)
A stepmother's marchen (teenager widowed step mother)
Holy grail of eris (ghost of villainess x plain MC)
Duchess of the attic (getting ready to divorce)
Maid in a TL novel (plain MC who knows her place and shows no greed, not clever but doesn't do stupid stuff)

Wake up, warrior (clearly harem type and FL is good idk why underrated)
Truthfully they only remembered her (ex knight)
Oh! My prince (emperor to be)
Runway de waratte (has anime)
Chitra webtoon (turns slow after many chapters)
Dictatorship (bodyguard lady)
Daisy (Lisabel) [turns back in time, wise decisions]
Angelic LADY (Good)
I Picked Up the Second Male Lead After the Ending ( cute and fixated but wilful)
Men in the harem (op op op op op)
Anyone Can Become a Villainess (new)
The great wish (emperor)
The demon lord wants to die (emperor)
Yeon lok heun (best warrior, gender bender)
Kingdom of Queen (competition of throne, females use brain, I don't think there is romance, just began read)
Irregular empress (Best knight)
Empress's harem ( 3rd princess, harem responsibilities, fluff)
God bless you (warrior princess)
Daughter of elemental king (underestimated straight headed girl)
Yeonwoo's innocence (high schooler)