Reading zikr after salah

Salam, I read a post on Instagram saying that if you read the zikr (subhanallah, alhamdulillah, allahuakbar) 10 times for each phrase after each salah it’s an easy way to gain reward. Another post I saw said to read it 33 times after each salah. Can someone shed some light onto which one is correct and back it up with evidence? Jazakallah Khair.