Romance novels often have fantastic friendship subplots. Casey McQuiston's 'One Last Stop' has a stellar found-family friend group that supports the main couple. The scenes in their apartment building are just as joyful as the romance. Sometimes you read for the love story but stay for the hilarious, supportive squad.
Ooh, what about plays? I mentioned Shakespeare, but modern plays too! Websites for playwrights or theater companies sometimes publish the full script of a produced play as a free PDF for promotional or educational purposes. The dialogue in plays is all about relationships. A two-hander play about two lifelong friends can be a blisteringly quick and emotional read.
Honestly, I gave up on hunting for free versions of specific stories. The algorithm-driven discovery on places like Royal Road is so good now that I just find new, completely free stories that are just as gripping.
'Best Friends' might be elusive, but have you tried searching for the trope instead? 'Best friend romance' or 'childhood friends to lovers' tags on those platforms will pull up dozens of high-quality, free-to-read originals. You might even find something you like better. Supporting living authors who are publishing serially for free feels great, and you can often interact with them in the comments. It's a whole different, more rewarding experience than chasing pirated copies.
You know, sometimes the legal free version is an audiobook. Services like Libby and Hoopla have audiobooks, and Spotify Premium now includes a chunk of audiobook listening time per month. If you're cool with listening instead of reading text, that opens up another huge avenue.
Listening to a story about deep friendship can be incredibly immersive. A great narrator can make the bond between characters feel even more real. Don't limit your search to just ebooks or PDFs if an audiobook could hit the same spot for you.
Reddit's FreeEBOOKS subreddit is constantly updated with links to free, legal promotions on major retailers. They're usually time-sensitive, so you have to grab them during the promo window. I've gotten quite a few contemporary fiction titles with strong friendship elements from there.
Just subscribe and check it once a day. The posts specify the retailer (Amazon, Kobo, etc.) and the region it's free in (often worldwide).