We find many questions to be asked in this area. Here are some of them, and some responses.
A General Rule of Who is of Christ?
What is Baptism in the Holy Spirit?
Baptism With and Being Filled By the Holy Spirit
Indwelling, Sealing, and Baptism of the Holy Spirit
The Promised Gift of the Holy Spirit
To Be Made More Holy
Sanctification, Spirit Baptism, and Many Different Churches
Is tongues present every time someone is baptized in the Spirit in Acts?
Acts 8, about the Samaritans.
Acts 9, about Saul of Tarsus (the Apostle Paul).
Has God Caused Some Gifts to Cease?
The Purpose of Spiritual Gifts
The Purpose of the Gift of Unknown Tongues
May Specific Gifts of God be Desired and Requested?
Is speaking with tongues the initial evidence of the Spirit baptism, by Mark A. McNeil.
Search in the Light Ministries, has links to many outside resources.