I have made this game that could need a better trailer:

https://fourpixelsgames.itch.io/rebel

https://store.steampowered.com/app/2496160/Rebel/

It doesn't have to be super long. The existing one on Steam features clip scenes with AI generated graphics that people tell me they don't like. So maybe just some gameplay clipped together maybe overlaid with some text. I was told to use "davinci resolve" instead of the windows movie editor as it is better at overlaying text, and to clip to the music. But I don't really have any skills in trailer making so if you do and wanna help get in touch :-)

Cheers,

Martin