Easiest Trick to learn on a skateboard?

I am an avid snowboarder and have recently tried skateboarding in August. Now that snow season is over I am back to skateboarding and can Ollie. I get on average 8-12 inches when I Ollie and its pretty consistent. I want to progress my riding so what is the easiest trick to learn from here? I do have a kicker ramp if it involves that so any tips would help. Thanks a lot