The new Shasvastii models are pretty good stand-ins for Turians.
The female Tohaa could easily be Asari.
The male Tohaa could be good for Vells.
Although not perfect, the Kaauri could work for Salarians.
Corax, Gao-Raels and Clipsos could be Quarians.
Sogarat kinda work as Krogan, as do the Xeodrons.
Hungries work as Vorcha.
Unidrons could work as Geth.
The Caskuda could be a Yahg.