With the genophage cured Krogan would be another possibility as well. Asari might be able to be harvested as well, Harbringer did say they had a genetical weakness but did not say they couldn't be uplifted, which is the case with the other races.
“Quarian; considered due to cybernetic augmentation, weakened immune system too debilitating.”
“Drell; useless, insufficient numbers.”
“Human; viable possibility, aggression factor useful if controlled.”
“Asari; reliance upon alien species for reproduction shows genetic weakness.”
“Salarian; insufficient lifespan, fragile genetic structure.”
“Krogan; sterilised race, potential wasted.”
“Turian; you are considered...too primitive.”