My best advice is this..
1.. If he’s serious, his taste will change and evolve. He’ll start with one guitar, and eventually end up with something totally different.
2. Don’t start him off with a complicated guitar that has locking tuners or nuts. Too much work for a beginner.
3. Try to find something that best represents the music he’s most interested in.
4. Don’t get him any weird shapes. That just complicates everything.