Need AE advert/promo template

Hello all,
I’m in need of a nice promo/advert template with place holders for video etc for a promotional video.
I work at a university in the UK and each dept is in charge of its on promotions for internal and external use.

Im a lecturer within Music Technology and will be filming various shots to make up some promotional content but would like a nice template to put it all together too which I can edit thing in and out if need be.

Any suggestions? It will be available internally as well as on YouTube.

Looking for something clean, but not too corporate. Music wise I’ll deal with that (I’m an AJ Author).

Thanks for your suggestions.