I always had the image in my head that He is a He.
I did also.
However, He is a Spirit. And Spirits do not have genders.
so... it's complicated
we won't have gender on the other side as well, so the question is only relevant for our Earthly path.
John 16:13 Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
Male imagery referring to God
The male imagery used to depict God is fundamentally different from the female similes found in Scripture. God may be like a mother in certain aspects, but He is Father; Jesus prayed to Him as Father and taught His disciples to do the same (Matt 6:9). The Second Person of the Trinity, Jesus Christ, became incarnate as a man, not a woman, and Jesus referred to the Holy Spirit with the pronoun ‘He’ (John 14:16–17). These are not similes or metaphors, but teaching regarding the very nature of God and how He relates to His creation, and how the members of the Godhead relate to each other.
What's in a pronoun? The divine gender controversy