A few of the best UK feminist blogs that I have come across. Feel free to add more in the comments section and I will add them to the list
The F Word https://www.thefword.org.uk/
Black Girl Dancing at Lughnasa http://thediasporadiva.tumblr.com/
UK Feminista http://ukfeminista.org.uk/
The Everyday Sexism Project http://everydaysexism.com/
Another Angry Woman https://stavvers.wordpress.com/
Penny Red http://laurie-penny.com/
Reni Eddo-Lodge http://renieddolodge.co.uk/
Rarely Wears Lipstick http://www.rarelywearslipstick.com/
Finally, A Feminism 101 Blog https://finallyfeminism101.wordpress.com/
Bad Reputation https://badreputation.org.uk/
I will be looking through some US blogs and will post links in due course