The following are resources I personally find useful as a writer, so maybe you'll find them useful, too. None of these recommended resources contain affiliate or sponsored links.
Chipperish Media is a company run by Lani Diane Rich, an award-winning, bestselling author (she's an award-winning podcaster, too, which is how I became a fan of hers). I recommend her free podcast, "How Story Works," which comes in short, bite-sized episodes. Chipperish Media also offers paid services to writers, like critiques, copy text, and cover design.
The learning curve on this free photo editing software is admittedly a bit high, but there are plenty of tutorials online to help you do whatever you need to do. I recommend it if you're doing any of your own photo editing and don't already have suitable image editing software.
Some of my colleagues call me "Word Girl," so maybe I just feel a special affinity with Mignon Fogarty, but I've always found her Grammar Girl articles to be interesting and informative. She's got a podcast, too, if that's your thing. I trust Grammar Girl to be accurate and well-researched, which is important when I have a grammar question. What's also important is that she doesn't come off as preachy, just helpful. We all need some help with our grammar sometimes, and Grammar Girl is a great resource.
There are many writer-vloggers out there right now, but there is only one whose videos I watch regularly, and that's Jenna Moreci. She tells it like it is, and she's funny and genuine. She's got plenty of videos on topics like outlining, writing strong characters, and writing realistic romance.