Sawano Hiroyuki is always a good choice,most of her songs are awesome. Same goes for Susumu Hirasawa, in my opinion THE best composer in the anime industry.
I also enjoyed the tracks from Shiro Sagiso, who composed "Hundred years of war" and "My Brother" for the Berserk Golden Age Anime.
During my Kingdom manga rush I loved listen to these two tracks, they harmonize extremly good with this manga. It's a shame that the kingdom anime is as bad as the 2016 Berserk anime.
But my absolute favorite is and always will be Akiko Shikata. Her songs for the When they cry series (Umineko,Higurashi,Higanbana) are just on point. Even the songs of her which are not related to this franchise have its vibe.