The "6000+ Cinematic SFX Ultimate Bundle Pack" from vfxdownload.net (often listed under the vendor name Professionalsongs) is a massive digital library designed for video editing.

Large cinematic slams, horror hits, sub drops. Transitions: Whooshes, swooshes, glitches, risers. Ambience/Environments: Horror drones, suspenseful textures.

Gun shots, fire, water, digital HUD elements.