April Boy, 3 syllable names

I am looking for a three syllable first name that sounds well with Alexander as his middle name. My other children's names begin with an A and a S, so I would prefer a different letter beginning for his name. I am leaning toward strong consonant beginnings sounds such as B, D, K, and maybe CH, or T. Meanings of names are very important and I don't want anything that is specifically religious.