You can try it on Google Colab [1] to get started.
There are quite a few tutorials for getting started with SD.[2] They tend to explain how to install it on your CPU, but some also explain how to build your own instance on Google Colab . I know this one in Spanish[2], and you can look for more. [3]
[1] https://colab.research.google.com/github/altryne/sd-webui-co...
[2] https://youtu.be/5z223SxlAcA?t=1910
[3] https://www.youtube.com/results?search_query=stable+diffusio...