YT is great for this as well! I've been using these 'ambiance soundscapes' to help me get in the right mood a lot during the pandemic. It's also really useful for DnD sessions, writing fiction (or non-fiction too!), and for getting house/work done.
Here's some links, but searching for the right mood is fairly straightforward on YT:
Not affiliated. Just like to put it on sometimes with a good indie playlist while I'm drinking coffee and doing work.