(not intended to be a proposal)

The Einherjar are so male-heavy.  This is surprising—there are so many good female candidates.  Here are some suggestions:
Boadicea (Briton warrior queen)

Victoria Woodhull (19th century woman’s suffragette, who ran for President of the United States in 1872 on basically a free-love platform)

Margaretha Geertruida Zelle (better known as Mata Hari; an exotic dancer and courtesan who was executed by firing squad for espionage during World War I) (people might start to think that I have a particular interest in exotic dancers or something)

Livia Drusilla Wife of Augustus, mother to Tiberius.  Anyone who has ever watched or read “I CLAVDIVS” will recognize her as one of history’s great cast iron bitches.

Hanna Reitsch Female aviatrix and test pilot for Nazi Germany

Henrietta “Hetty” Howland Robinson Green, one of the first women to make an impact on Wall Street, and one of history’s most ludicrously frugal misers.

Helena Blavatsky, founder of the Theosophical Society and a 19th century mystic and spiritualist.