Tex sits next to 3 phonetic neighbors — Rex, Hex, and Flex are the closest matches by sound. Most share Tex's American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Texas"
"Yahweh is God"
"mind, intellect, spirit"
"God is gracious"
"from the settlement near St. Botolph"
"variant of Cassius"
"holly tree"
"flood tide, abundance"
"river, river that swallows rivers"
"strong and enduring as oak wood"
"modern American invention"
"a legend, one destined for greatness"
"free spirit, small but mighty"
"settlement among the undergrowth, brushwood farm"
"servant, messenger"
"a Breton, from Brittany"
"ford belonging to the king"
"noble protector"
"of the mountain"
"title of honor (from Titus)"
Similar sound: These names share phonetic patterns with Tex — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American English origins, giving them the same cultural heritage as Tex.
Rhythm: Tex is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.