Below is a collection of useful blogs and sites related to frontend that I found useful.
- Aaron Gustafson
- Adam Wathan
- Ahmad Shadeed
- Aleksandr Hovhannisyan
- Alex Bespoyasov
- Axel Rauschmayer
- Bramus Van Damme
- Christoph Nakazawa
- David Walsh
- Dmitri Pavlutin
- Hemanth HM
- Josh W Comeau
- Kent C. Dodds
- Khalil Stemmler
- Lea Verou
- Lee Robinson
- Michelle Barker
- Nicolás Bevacqua
- Philip Walton
- Sam Thorogood
- Tania Rascia
- Web Dev Simplified