Hendrick sits next to 4 phonetic neighbors — Henrik, Hendrik, and Henry are the closest matches by sound. Most share Hendrick's Dutch-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ruler of the home"
"wealthy guardian"
"power of peace"
"wolf path, the way of the wolf"
"famous in battle"
"red-haired, little redhead"
"army guard, protecting warrior"
"yew warrior, bow warrior"
"emperor, supreme ruler"
"pointed hill"
"scholar"
"rigid airship (named for Count Ferdinand von Zeppelin)"
"peaceful ruler"
"divine spear, god's spear"
"bearer of Christ"
"noble elder"
Similar sound: These names share phonetic patterns with Hendrick — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Hendrick.
Rhythm: Hendrick is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.