I will come back here later on when I start writing the sequel. My current book will have approx 90% of all female cast who are either magically strong enough to punch the wall or tall and muscular and in some cases both. (Magic in my system enhances strength.) But there is little action going on until the second book starts.
It is definitely not a litRPG and only isekai in a broad term (readers explore the world with the MC)
the only one I know is rise of the guild master, if you are uncomfortable with the 18+ stuff you can skip all the explicit scenes.
also, is a comedy so all the characters have comedic value in them.
Alright, I know a novel in this gender. I only read the mangwa (sorry if I wrote it wrong) but I checked and it also has a novel on Novel Updates! The name is "The Emperor and the Female Knight"
If a futa main character in an all girls polycule (with explicit scenes) is OK, I'd recommend Natashe the Halve.
If additional weebiness, lampshading of every trope and at times confusing gendering of the MC (genderbent, full female body, bot often addressed with masculine terms) is OK too: In another world as my waifu #1.
Isekai'd Shoggoth has a freeform shapeshifter with a beautiful default form as the main character, though her feats of strength are not a main focus of the story.