Utilitarian Thinkers
https://www.utilitarianism.net/utilitarian-thinkers
This website offers concise overviews of utilitarian thought by John Stuart Mill and other philosophers from different times and places in the world.
Was John Stuart Mill a Socialist?
https://jacobin.com/2021/05/john-stewart-js-mill-liberal-socialism-locke-madison
Although today John Stuart Mill is mainly known for his contributions to moral and political philosophy, in his own time he was more highly regarded for his work in political economy. This article discusses Mill's perception of himself as a "socialist" in an era of Victorian high capitalism.