Hello there @OoKyeXYoO!
Welcome to Unreal! Niagara is such a cool system, although it can be a bit challenging from the beginning. I would suggest starting with the basic guides around the community, as well as tinkering with the ContentSample scene, play around with attributes, and getting familiar with all related elements.
After that, I have also included two external video guides, one with more practical approach to starting Niagara, and an specific one about how to create mesh reproduction effects. Hope this helps!
