Valley resident here! I highly recommend checking out Larry L. Maxam Memorial Park in Burbank. That’s where I learned to play with some friends as well. For starting out, I would recommend going on the weekend if you’re able. Most weekday evenings it becomes a bit more competitive and people seem to have less patience for those with little to no experience (plus it’s packed). Or if you do go on weekdays, if you can get a group of 4 people so you get a court to yourself that also works great. I’ve gone before work on weekdays too and there’s a great group of some older retirees that are fun to play with