There are about 20 billion places to buy replacement screen’s for an iPhone. What’s worthwhile?

Backstory: I have a Windows phone now. Company is axing exchange access and forcing Good. My WP device is not supported. We have an old iphone 5 with a shattered screen sitting in a drawer. I want to try to revive it, but don’t want to spend much money on it. Preferably no more than ~$20