Reincarnated With Memory

[CraftyChara]

MC must have their memory of their past life/lives and use it for their current/future life.

Ascendance of a Bookworm: Part 1 Volume 1 21yo Urano reincarnated into a body of a 5yo (in another world) complete with all of her memories.

The First Fifteen Lives of Harry August Harry finds himself born again back in 1919 in the same circumstances, gaining the knowledge of his earlier life at an early age.

[Gerd]

Ken Grimwood's Replay, is not exactly what you describe but in a similar vein.
The character's not reincarnated but relives his life over and over again.

[...cats?]

Every Day - not reincarnation, but the main character wakes up in a different body, with a different life, every day

A Dog's Purpose

[Rainbowheart]

The Clarity
My Second Life
The Dust of 100 Dogs

[Hannah]

Also not an exact match. No reincarnation, but in A Memory Called Empire the main character's society is unique in that people appointed to critical jobs are given the memories of all their predecessors. The main character is an ambassador to a powerful empire and the plot revolves around solving a murder mystery.

[CraftyChara]

Hannah wrote: "Also not an exact match. No reincarnation, but in A Memory Called Empire the main character's society is unique in that people appointed to critical jobs are given the memories of a..."

You know what?...That's great thank you.

[Hannah]

Oh yay! I really enjoyed it, I hope you do too!

[CraftyChara]

Bump*