All of these services are tools I currently use. I'll update this post as and when I find new resources.
World Building, Series Bibles, Plotting
Website
Name Cheap – Domain Names
Siteground – Hosting (If you use Wordpress)
Devi – Website Builder (if you use Wordpress)
Retailers & Distributors to Publish
Newsletter
Stock Photos and Image Editing
Deposit Photos (buy the pack of 100 image from App Sumo when it comes up twice per year)
Formatting, Writing, Metadata
Wide Wizard – Auto-fills keywords, titles, blurbs etc in the upload process.
Others
Author Content Calendar – Use Code MORGANA for $5 OFF
(12 months of daily post ideas, 500+ Canva Templates including promo posts, meme library, games and TikTok templates, Social media audit how-to and Resource guide to elevate your social media.)