Need some inspiration for transition effects

Lately it feels like I keep saying the same transition in my projects, i want to see some alternatives. I’m fine with using external libraries, just want something pretty. The ones i’m looking forward to are more like, clicking the button and having something appear (not hover transition)
Examples: “Modal opening/closing transition” “sidebar open/close transition” “accordion open/close transition”

might try checking out some Wes Bos tutorials. He has a knack for it and also a lot of free content to show you how to do it.