Halbarad have one, from Gondor's "Grey Company" spell.
And for Alatar - can't it be just Saruman's one, but coloured blue, just for now? Because my guess is, he won't get any before Men of the East faction release.
And one more thing. Would you consider adding Elladan and Ellrohir? Arwen is younger and she's there. (And why there's no option to recruit Celeborn and Gladys? It would be awesome to play with all Elfolords of third age, at once.) ^^