around here at least, African American females tend to have names that end in "-sha" (Aisha, Lanisha, Moesha, etc

SharonA, imo, there are certain sound preferences that groups of people have that greatly influence the type/s of musical voices that members in that group find attractive and find unattractive. For instance, one major type of singing voice that African Americans and Jamaicans {and perhaps other Afro-Caribbean people} like are gritty, gravelly, smokey voices. {But as a group, African Americans also like falsetto male voices}.

Just as groups of people have preferences for singing voices, I think that groups of people also have preferences for the sounds that make up certain personal names. A name's length {whether it is one syllable, or it is two syllables or three syllables or more are important factors which determine if a specific name will be considered attractive. Other considerations are whether the name has "unusual" [for that group]and therefore difficult to pronounce consonents clusters. In addition, cultural connotations associated with specific sounds help to determine if that sound is pleasing or displeasing to a particular group. For instance, imo, the letter "u" {pronunced "oo"} at the end of a name has the negative association sound of a cow "mooing" {few Americans want to name their daughter or son after a cow}. And the beginning letter "U" has even more negative associations for Americans as it is the beginning letter for the word "ugly". Given this theory, I figured that the Black doll which was heavily marketed in the 1970s and was given the Swahili female name Tamu {tah-MOO} which means "sweatness" wasn't going to sell-partly because of that name. I also guessed correctly that the name Tamu would rarely be selected by parents as their daughter's name. Other African/Arabic names which became known during that decade have become "standard" African American names. But not Tamu.

What I'm suggesting {and surely someone else has articulated this theory before ?} is that certain prefixes {beginning elements, and their sounds} and certain suffixes {ending elements, and their sounds}are more aesthetically pleasing to some groups of people than others. I don't know why this is, but preferences for the beginning and/or ending sounds of personal names/nicknames certainly appears to exist among specific groups of people. The group's preference for some of these preferred prefixes and suffixes may wax & wane or over time be rejected {as I think has happened with African Americans with regard to the "Th" beginning sound and the "ous","us" and "eos" ending sounds in male names such as Theodous, Theophilus, and Thaddeus. But sometimes, the preference for specific sounds of names stays very constant {examples anong African Americans are the "La" prefix, particularly in female names [I've read that some "La" names were collected among African Americans as early as the late 19th century. And "La" as a prefix is very common among African Amerian girls since the 1980s {Examples of La names-Latisha, Latosha, Latoya}. "Da" {pronounced DAY} is a prefix that is very popular among African American males since at least the 1980s. When combined with the commonly used suffix or middle syllable "aun", "on", and aun's variant "quan", you get male names such as "Daquan" {pronounced DAY quan} and Davonte {pronounced day-VON-tay. The standard nickname for both of these male names and a host of other male names that start with "Da" is "Day Day".

All of this to say, there appears to me to be little doubt that "sha" {"cha"} is one of the most consistently preferred prefixes {at least since the l950s and maybe earlier than that} for African American females {and to a somewhat lesser extent African American males. "Sha" {"Cha"} is pronounced "SHAH". I'm not sure why the sound of this prefix is so aesthetically pleasing to African Americans {and I'm curious if other people of African descent, for instance, Black Britons have the same sound preferences as African Americans}. I could speculate that that sound preference among African Americans came from that prefix's use in the Biblical name Sharon and/or from the Arabic names such as the female names Shadha - Aromatic; Shadiyah - Singer, story teller; and Shareefa - Noble that begin with "Sha" {since there is historical documentation that some Africans who were brought to the United States and enslaved were Arabic speaking Muslims.} The Arabic male name Sharif {Shareef} and its female variant Sharifa {Shareefah} are very similar spellings and meanings as the Persian word/last name Shah.
But that would be pure speculation.

However, it is interesting to see the similarities in spelling and meanings between certain Hebrew, Arabic, and Persian "sha" names.   Given the history of these people, I wouldn't at all be surprised if there was some connection between each of these names. But I don't know {though I think some researchers must know} which names came first-the Arabic, Hebrew, or Persian "Sha" royalty names.

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Since the late 1960s, early 1970s "isha" has been a commonly used suffix in African American names. "Isha" is pronounced and also written as "eesha". A variant form of that suffix is "iesha" {pronounced EYE-eesha}. The suffix probably became familiar to African Americans through the Arabic female names Ayesha, Maisha, and the West African name Keisha {said to mean "favorite daughter"; however I think that this name is also related to the Hebrew female Kezia .

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This is a long response to a short question so I'll stop right here.