Recommendations MC using reincarnation knowledge

It looks like it hasn't been mentioned yet, so I will say probably the best example of a Reincarnator modernising another world/the past is Release that Witch simply because it goes from typical medieval right up to 1900's technology (and still advancing) without falling into the trap that GATE did which was a onesided beat down (as cool as that was) and gives the opponents room to counter.

 

That isn't a redo just transmigration.

https://www.novelupdates.com/series/doom-lord/

https://www.novelupdates.com/series/extraordinary-genius/

https://www.novelupdates.com/series/rebirth-of-the-thief-who-roamed-the-world/

https://www.novelupdates.com/series/the-human-emperor/

https://www.novelupdates.com/series/the-world-online/

https://www.novelupdates.com/series/the-great-thief/

https://www.novelupdates.com/series/reign-of-the-hunters/

https://www.novelupdates.com/series/god-of-music/

https://www.novelupdates.com/series/x-epoch-of-the-dragon/

https://www.novelupdates.com/series/apocalypse-meltdown/

https://www.novelupdates.com/series/the-great-merchant-in-the-cataclysm/

https://www.novelupdates.com/series/mmorpg-rebirth-of-the-legendary-guardian/

https://www.novelupdates.com/series/revolution-of-the-8th-class-mage/

https://www.novelupdates.com/series/i-am-the-monarch/

https://www.novelupdates.com/series/heavenly-calamity/

https://www.novelupdates.com/series/limitless-sword-god/

https://www.novelupdates.com/series/god-of-crime/

https://www.novelupdates.com/series/still-wait-for-me

Game play future knowledge used after transmigration.

https://www.novelupdates.com/series/night-ranger/

https://www.novelupdates.com/series/the-amber-sword/

https://www.novelupdates.com/series/abyss-domination/

I am going to include these just because he is using future tech knowledge.

https://www.novelupdates.com/series/miracle-throne/

https://www.novelupdates.com/series/great-tang-idyll/

And future visions.

https://www.novelupdates.com/series/top-management/

 

I throw my vote at I am the Monarch and Amber Sword.

I'd also recommend Dominion's End. Even though that one is only a quasi-do-over since the MC reincarnates in the past, in an alt world, in a different body. The world is about to go through the terrible events she remembers and she's in the body of a hospitalized boy.

 

+1 For Amber Sword

maybe you can try KR transmigration novel though it's same in concept of all knowing mc ( knowing future, secrets, bla bla) like The Novel's Extra , Omniscient Reader pointview and trash of the count family