I totally get why you'd want to find 'My Best Friend' as a free PDF—books can be expensive, and sharing stories should be accessible! From what I know, though, it's tricky. Most modern books, especially those from established publishers, aren't legally available for free unless the author or publisher explicitly offers them (like promotional giveaways). I'd check the author's website or platforms like Project Gutenberg for older works that might've entered the public domain. Piracy sites often pop up in searches, but supporting creators matters—maybe your local library has an ebook version you can borrow legally?
If you're into heartwarming friendship stories, I'd also recommend checking out 'A Man Called Ove' or 'The House in the Cerulean Sea'—both have that emotional depth you might be craving. Sometimes, exploring similar titles leads to unexpected gems!