Salam, dear brother!
You are right, Ahadith can never be considered infallible like the Revelation Al-Qur'an. You will find this in my following book.
Please find here my humble selection of Ahadith.
A SELECTION OF AHADITH
(Sayings attributed to the exalted Prophet that pass the Criterion of Qur’an.)
There are about 1.4 million reported sayings of Prophet Muhammad (S) in circulation today. These sayings were committed to writing centuries after his demise, and all of them are based on hearsay. The chains of narration are often very long: He heard it from him who heard it from her who heard it from him, and so on, that the exalted Messenger said this or something like this. Knowing full well that the only unaltered book with Muslims is nothing but the Qur’an, and according to irrefutable evidence in the Book, the Prophet would say or do nothing against this Divine Revelation. We have chosen only those sayings that are in complete harmony with this Criterion.