Well in transition there are lots of tricks to learn once you have some basics down:
1.) If you can rock to fakie you can learn feeble stalls to fakie, once you got them down, you can learn pivot fakies or axle fakies. But please be advised, that you must not revert them, this is for people who wear chain-wallets.
2.) If you can do board stalls, you can learn proper rocks and rock&rolls where your back trock are flush with the coping and the the rock is completely decked. They are usually easier on steeper transition.
3.) If you can drop in, you can do sweepers or beanplants. Both are extremely fun and are a good foundation for more exciting tricks such as a lien to tail.
4.) If you can kickturn you could learn tailtaps. They are usually easier on poolcoping, but are also possible on steelcoping. Backside ones worked better for me but its really a preference thing.
5.) If you can do switch rocks try to learn them with a fakie ollie in, from there you can get comfortable with any disaster trick such as a back disaster or a frontside disaster. Also you can do fakie ollies into smith stalls, which is easier than a regular smith-stop or smithgrind.