Hostess

I find it odd that in your list of suggested Self roles in the update form dropdown and in the help page, you choose to prominently divide the host role by gender:

Host

Hostess

Co-Host

Co-Hostess

https://help.imdb.com/article/contribution/filmography-credits/cast-acting-credits-guidelines/GH3JZC74FVYKKFMD?ref_=helpms_helpart_inline#self

Merriam-Webster lists this meaning only under "host":

a person who talks to guests on a program (such as a radio or television show or a podcast)