Noob question: where can I download FLACs/music?

I've been building up my digital music library again after giving music streaming the boot. I was going to attempt to digitize my CD and vinyl collection, but I frankly don't have the time for all that. So I thought I might turn to file-sharing and download digital versions of my physical collection. I prefer FLAC or WAV if the former isn't available. Can you recommend good places to get started?