These 2 dramas are Xu Kai's historical xianxia dramas. The Legends is more focused on martial arts, sects and demons. ALP is mainly based in God Realm & Immortal Realms with 4 True Gods and immortals. They are both very interesting in their own way.

Both dramas are Chinese fantasy romance dramas with
- white haired male leads
- xianxia romance
- immortals
- beautiful romance

Both are same genre, fantasy romance xianxia dramas.
- mortal/immortal life of the leads
- reincarnations
- life tribulations, suffering, pain
- beautiful romance

Both are xianxia dramas, with the leads went through the life trials together, in Miss the Dragon (4 lives), in LAR (10 lives). It contains a lot of immortal characters in both dramas.

Both are current ongoing dramas starring Bai Jing Ting as Male Lead. Totally different dramas, but both are outstanding in their own ways. Bai Jing Ting's characters are totally different too, he slayed in both. If you enjoy Bai Jing Ting in one of these, please try to watch the other one too.

These two are totally different dramas. But, It gives me sort of similar vibes. I think majorly from ML characters. Both MLs are very handsome and charismatic Captains of Special Forces/ Military for their respective countries. They both look cold outside, but actually warm and kind-hearted inside. They both tried their best to protect FLs in any way.