Place it right on the reveal frame as the first reaction hit in your edit. Build tension beforehand with the sudden suspense sound, then follow it with the oh my god wow button if you want a second, bigger reaction layered after yours.
Over dit geluid
This is a short voice clip of someone blurting out oh my god in an exaggerated, drawn-out way that stretches the shock across about a second. It lands as funny and dramatically surprised rather than genuinely alarmed, the kind of over-the-top gasp you play when a moment feels too ridiculous or unexpected to take seriously.