Writing the Other is an excellent site that offers a slew of information on writing characters different from you. I found the On-Demand Masterclasses to be incredibly helpful, and have since ordered the book. I recommend at least a quick skim-through to see if there is any info you find helpful in developing your characters!
Writing Forward, a creative writing blog packed with tips and ideas that will inspire and inform your writing projects. You’ll find posts on grammar, good writing habits and practices, plus tons of writing prompts and exercises to keep your pen moving. Whether you’re looking for fresh ideas or trying to improve your writing, you’ve come to the right place!