I've added Game Jam support to our Randomizer! It's a separate view that lets you go through projects pages one at a time in random order, skipping things you've already seen. Here's a direct link: https://itch.io/randomizer?jam_id=10205
I've also added a link to it on the top of the submissions list. Enjoy!
I also update the dialog that appears after you download a file to show a random assortment of games from the jam to make it easier to find new things to rate.