No.3949
As far as "egoist critique" goes, there is of course always the output of politically active egoists like Benjamin Tucker and Renzo Novatore, both self described egoists who published articles.
However Tucker is a libertarian basically and Novatore his hard to find in English aside from his work Towards the creative nothing.
https://theanarchistlibrary.org/library/renzo-novatore-toward-the-creative-nothingTucker:
http://fair-use.org/benjamin-tucker/There is also Emma Goldman who didn't label herself an egoist but did read and like stirner and her critique often involves spook busting. Also everybody should read some Goldman in their life.
http://dwardmac.pitzer.edu/Anarchist_Archives/goldman/GoldmanCW.htmlAs far as contemporary stuff goes, you can just type egoist into the anarchist library search and read hundreds of articles of bad quality by lazy authors. Because thing is - I don't think there is much more to add to egoist critique beyond what Stirner already wrote. There is only so many times you can show something to be abstract essence divided from it's concrete being without repeating yourself.