God has given His Holy Spirit to people before they were baptized, and He has not given His Spirit to people even after being baptized! I understand there are some churches that use baptism as a ritual for becoming a member of their particular church, but baptism is a ritual that symbolizes our becoming dead in Christ and then alive in His Life. It is our becoming members of God's own family. Pray to God to lead you to the right place to be baptized and then wait, He will make it apparent and you won't have to wonder if it's Him or not.
How is it you think that the Baptism of the Holy Spirit after salvation does not exist?
Acts: 8. 5. Then Philip went down to the city of Samaria, and preached Christ unto them. 6. And the people with one accord gave heed unto those things which Philip spake, hearing and seeing the miracles which he did. 7. For unclean spirits, crying with loud voice, came out of many that were possessed with them: and many taken with palsies, and that were lame, were healed. 8. And there was great joy in that city. 12. But when they believed Philip preaching the things concerning the kingdom of God, and the name of Jesus Christ, they were baptized, both men and women. 14. Now when the apostles which were at Jerusalem heard that Samaria had received the word of God, they sent unto them Peter and John: 15. Who, when they were come down, prayed for them, that they might receive the Holy Ghost: 16. (For as yet he was fallen upon none of them: only they were baptized in the name of the Lord Jesus.) 17. Then laid they their hands on them, and they received the Holy Ghost.
Acts: 1. 5. For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence. 8. But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.
You are correct in not needing Baptism for salvation ,water Baptism is a symbolic wittness for the believer for death burial and resurrection in Christ.
It is a outward confession of salvation.
John: 3. 11. Verily, verily, I say unto thee, We speak that we do know, and testify that we have seen; and ye receive not our witness.
John: 14. 26. But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you. 27. Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid.
God's Word is clear on the Baptism of the Holy Spirit, unless you want to remove all verses concerning the Baptism of the Holy Spirit ,and some how with no explanation other than what is