Probably going to deep into your pattern lol [name_f][/name_f]- 4 letters, 2 syllables, starting with a long vowel sound [name_f][/name_f]- [name_m]Amos[/name_m] or [name_m]Abel[/name_m] for a boy, [name_f]Aida[/name_f], [name_f]Ayla[/name_f], and if you don’t mind repeating an initial [name_f][/name_f]- [name_f]Iris[/name_f] or [name_f]Opal[/name_f] for a girl. [name_f][/name_f] [name_m]Otis[/name_m] for a boy. [name_f]Iona[/name_f] with 3 syllables. [name_m]Arlo[/name_m], [name_f]Ella[/name_f], [name_f]Emma[/name_f] all have first syllables that sound like a letter like your first three. [name_f][/name_f] [name_m]Hugo[/name_m], [name_m]Milo[/name_m], [name_f]Vera[/name_f], [name_f]Ruby[/name_f], [name_f]Thea[/name_f], or [name_f]Nora[/name_f]