X-Ray Spex' second album "Conscious Consumer" is very difficult to find but can be heard on YouTube. Having listened to it a lot, in my opinion it compares very well with Germ Free Adolescents. As with the latter, Poly sings about things she cares about, from the heart, but her singing style is slightly different - but still very affecting. The band rocks: credit to the arranger/producer.
Whether you like this album depends on where you're coming from: personally, I love it. I wish Poly had had a bit more credit while she was alive.