Here are some sites I find helpful. They are in alphabetical order, not order of preference.
AllRecipes.com
America’s Test Kitchen
Chatelaine Magazine
Chef Michael Smith
Food Network Canada
Epicurious
Kitchn
Jamie Oliver
Joy of Baking
Martha Stewart Food
Yotam Ottolenghi
Some of my favorite chefs are my Mom, Anka, Laura Calder, Michael Smith, Anna Olson, Madhur Jaffrey has been a kitchen companion for years, Julia Child, Flo Braker, the contributors to the Santa Fe Hot & Spicy Recipe, Guiliano Bugiali and Elodia Rigante.
If you want to become a better cook and especially a baker, buy a scale! It makes quick work of using recipes from other parts of the world, not to mention saving time and cleanup when measuring butter, flour, sugar and everything else.