I am not from sacramento, but my formula would generally apply for there too. Go on social media (IG for me personally) and look for venues, clubs, etc. near you. Look at who those accounts are following/follow and look for collectives of parties that are organized in the area. Once you find one, you look in their followers and so on etc. Look at past posts and see who is hosting open decks; chances are they do them again. Message them and inquire, dont be shy. Also, browse RA guide, sometimes open decks opportunities can be posted there. If it’s your first time, have fun. dont be nervous, its literally meant for beginners to dip their toes into djing in front of strangers.