It looks like you are interested in populism. Well, you might want to take a look at:

Team Populism: populism.byu.edu

Demos: https://demos-h2020.eu/en

Cost – Populist Political Communication in Europe: ntnu.edu/populistcommunication/

Populismus – Populist Discourse and Democracy: www.populismus.gr

Extremism & Democracy: extremism-and-democracy.com

Jacobin: jacobinmag.com

Populism (Journal): https://brill.com/view/journals/popu/popu-overview.xml

CARR (Centre for Analysis of the Radical Right): https://www.radicalrightanalysis.com/