Comment by PaulHoule

I like the voice "Ivy" from Amazon's Polly.

It sounds a little bit like the voice of a moppet-type character from League of Legends that just huffed helium. Because it is so stylized you don't have the problem of a "perfect english gentleman" who pauses unnaturally, sometimes makes vowels like T-Pain, etc. that you have with more realistic voices.

It definitely comes across as female to me, but it is cartoony enough that it not so culturally coded as female -- so there is less of a sense of "female servicing" as there is with most voice assistants.