From your perspective does God know who will “choose Him” before they were created?
Yes, because God exists outside of time.
Psalm 14, Psalm 53 and Romans 3 (which repeat one another) says that God looked over Mankind as a whole ("over the sons of men") and without His intervention, the Answer was None.
None Sought Him, None Understood Him and None did "Good" in His eyes. None came to Him on their own and choose Him.
Man's nature is such that he or she is so wrapped up in their selves and their sins that they will not look to God, confess their sins and be saved despite the evidence of God in Nature and in everything we see. The Apostle Paul calls this nature as been "dead in trespasses and sin".
Therefore an Act of God must occur for anyone not to be "dead" anymore. Their brain must be reprogrammed to accept faith (as faith is totally alien to the natural mans thinking), he or she must have a heart transplant (the heart of stone must go), they are given Ears to Hear (as Christ said) so that they can hear the Word, Believe and Confess the faith which God has planted in them.
So the ability to choose Him is vastly more complicated and involved than most think.