Question regarding samples for making music

Hey guys, i recently started making music with FL-Studio. I came across the problem that i have a limited amound of samples in my library. For example, i only have a couple of up/downlifters, crashes etc., most of which i don’t like adding in my project. I was wondering if anyone knew where i am able to get more, and more fitting, samples for filling my project. It would be nice if there are some free downloads, but if i need to buy some thats also fine. I just don’t know were i should begin to look.😄