King Elrond?

[Tar Elenion]

Findegil wrote:
But they were all of female decent from Finwe. And obviously only male decent counted for the kingship. Else it would have gone to Earendil once Turgon was dead.

It is unproven that only male line descent counted for kingship. Dior inherited through Luthien. Maeglin seems to have thought he would be Turgon's heir (through a female line). It was Elrond who ruled in the west of the world until Gil-galad replaced him.
Also note that in PoME JRRT states: "The Third Age ended with the departure of Elrond in 3022 [>3021]; and the descendants of Elessar through Arwen became also heirs of the elf-realms of the westlands." He also writes: "'[Aragorn] Became King Elessar of Gondor and Arthedain, aided in the overthrow of Sauron with which Third Age ended in 3019. He wedded Arwen Undomiel, daughter of Elrond. His descendants became thus heirs of the Numenorean realms, and of Luthien and the Elf-kingdoms of the West.'"
There seems to be some evidence of female-line inheritance.