Can you recommend any of your favorite community lots or parks or something that can help fill up an empty neighborhood? :)

Hi there! I actually build most of my community lots myself (I have a bit of an obsession with building community lots), but I would recommend checking the Sims Community Project! There are tons of wonderful CC-free lots (both community and residential) that you can use and redecorate to your heart’s content. In my last neighborhood, I used the Simqualizer Night Club, Bumblebee Square, and Plumbbob Park. 🙂