Also check out the Youtube channel LiveOverflow. A lot of the stuff is binary exploitation, but some is web.

https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w

- https://blog.orange.tw/

- https://ngailong.wordpress.com/

- https://whitton.io/

- https://sakurity.com/blog

- https://homakov.blogspot.com/

- https://buer.haus/

- https://philippeharewood.com/

- https://portswigger.net/research

- https://gerbenjavado.com/

- https://medium.com/@intideceukelaire

- https://samcurry.net/

- https://stephensclafani.com/

- https://www.josipfranjkovic.com/

- https://www.arneswinnen.net/

- https://blog.assetnote.io/

- https://medium.com/@alex.birsan

- https://cablej.io/

- https://jonbottarini.com/

- https://www.corben.io/

There is also this massive list of write-ups that might be of interest to you: https://github.com/ngalongc/bug-bounty-reference.

Shameless plug: I write about web application security at https://edoverflow.com/.