I really want to read novels that have jealous & possessive male leads. It is good if it is a story of the emperor and the empress. BL stories are OK too.
https://www.novelupdates.com/series/why-harem-intrigue-when-you-can-just-raise-a-dog-instead/ https://www.novelupdates.com/series/rebirth-of-the-tyrants-pet-regent-prince-is-too-fierce/ https://www.novelupdates.com/series/our-binding-love-my-gentle-tyrant/
Crossing to the Future You gotta wait 1000+ chaps in though. A good action novel otherwise. The signs do show early on like 200-300 in but I've heard tales of his jealousy in spoilers
it's a looong road ahead, even translated chap are just reaching 600... but if you can read Chinese though...