Thank you for the recommendation and for reviving this topic. I am still a huge fan of it!
I have nothing against BL, but it's not my cup of tea, but hopefully it might help somebody else who might be interested in reincarnation stories and BL too.
Btw might seem a bit strange, but I have some recommendations myself. Since 2017 a couple of new kdramas came out with this theme ( in case somebody is interested)
Born Again
To All the Guys Who Loved Me
Wish there were more dramas like that, cause those were exactly what I was looking for, especially Born Again!