So you used up all three of your Phyllis then? Well, shouldn't be that damning, as long as you have your Katie good, up and running. Next guaranteed ReinI soldier is Assal from BSII (so not really an option). Well, you can always hit the Shrine, but RNG is so RNG there
For archers, you are in luck, as current Revival gives you a chance to farm up some Somas.)