The custom is to name the boy at his circumcision Bris.

A good name is better than precious oil (Ecclesiastes 7:1).
A fine reputation-acquired with diligence and good deeds (Sforno) -is a more valuable possession than precious oil (Rashi) which was used in ancient times to preserve the body. Thus a fine reputation will preserve the memory of the the departed more effectively than precious oils will preserve his body (Alshich).

Every person is called by three names: the name the parents give, a second name by which his friends call him, and finally the name he gains and acquires for himself through his conduct in life (Midrash).
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It’s fun to explore the origin and meaning of names.

The first website includes the book “Complete Dictionary of English and Hebrew First Names” by Alfred Kolatch which I use. If you wondering what name to choose before looking, then you’ll end up with a headache from a shortlist of 20,000!

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Jewish Baby Names
Hebrew baby Names
Baby Name Network
Baby Hebrew Names
Babynology
Thinkbabynames
Hebrew Names
Baby Name World