[name_f]Stella[/name_f] and [name_m]Jackson[/name_m] are not bad, but their style is slightly different than that of [name_f]Valerie[/name_f].
[name_f][/name_f]More suggestions:
[name_f][/name_f][name_f]Cynthia[/name_f] (classical roots)
[name_f][/name_f][name_f]Diana[/name_f] (classical roots)
[name_f][/name_f][name_f]Jacqueline[/name_f]
[name_f][/name_f][name_f]Noelle[/name_f] (same “elle” sound as [name_f]Stella[/name_f], but more modern)
[name_f][/name_f][name_f]Summer[/name_f]
[name_f][/name_f][name_f]Theresa[/name_f]
[name_m]Curtis[/name_m]
[name_f][/name_f][name_m]Douglas[/name_m]
[name_f][/name_f][name_m]Gregory[/name_m]
[name_f][/name_f][name_m]Mitchell[/name_m] (surname roots)
[name_f][/name_f][name_m]Stuart[/name_m] (surname roots)
[name_f][/name_f][name_m]Wesley[/name_m] (surname roots)
[name_f]Hope[/name_f] this helps!