haha this thread makes me confused a bit. title reads "influence on other music" but then people list composers who are like Kajiura. i guess OP meant influence on their listening of other music I dunno :"I thought of how much i like yuki's music that i'm starting not to take liking to any other musics easily !!!"
if I have to go by the title (which to me is more interesting), MICHIRU
https://vgmdb.net/artist/26400 could also fit. Sawano is also influenced by Kajiura I think. By influence of course I mean I can hear similarities, not that the artists proclaimed as such.
I realized I'm not listening to many young composers. makes sense in a way.
if I have to go by the trend of the thread, I can't believe no one said Kenji Kawai. His fusion, electronica, use of the orchestra, traditional instruments, atmospheric and emotional pieces are on par with Kajiura's music (sometimes better or worse). He does use female vocals quite a bit but not as much as Kajiura. The styles are very similar imo.
Akiko Shikata... yea could be influenced but I'd say the style of mixing different voices and composing is different. Takumi Ozawa is more electronica techno heavy. Neither is on Kajiura level.
Taku Iwasaki is another name who I think is as weird as Kajiura, in fact weirder. His soundtracks are super varied, super funky. I find some of his works just too chaotic but when he gets it right it's really good.
I always thought Yanni is similar to Kajiura in spirit :
https://www.youtube.com/watch?v=Tv3O0uw4_V0 but he isn't as weird as Kajiura lol.
crossover with vocals with synth pop: how bout the old classic that is Bond ?
https://www.youtube.com/watch?v=1d0f39knNVY
https://www.youtube.com/watch?v=HvWOKmYwLB0 but it's not similar to Kajiura just in the same fusion genre maybe
(weird = original, mixing different things together etc etc)