a dude from an old german UT forum has a long list of UT99 demos (716 demos in total) that he's going to be uploading to his youtube channel. I know there has been something like this before but i guess it can't hurt to have another person give it a shot. People can send in requests to let him know which demo they'd like to see being uploaded next.

here's the list. maybe you'll find something interesting. i already found something i've been looking for forever.