You're gonna have to look on Auto Trader or something to find some cars that she likes, then ask the seller if it is reliable, and take it for a test drive yourself.
Personally, I would go with something small, such at a Citroen Saxo, Peugeot 106, 306, Ford Fiesta, Fiat Punto, Vauxhall Corsa - as all these will have smaller engine sizes (under 1.4) so it will be cheaper car insurance.