I've gotten a LOT of questions on how I make my covers, get pictures for my covers/moodboards, what apps I use, etc...
First of all, I take almost every picture I use from Pinterest.
Just type in what you want and add "aesthetic". Eventually, you'll come across something you like.
So if you have no idea what to put on your cover, I'd recommend "Wattpad cover aesthetic" so you can find the vibes you're looking for.
After I find my cover background, I go to Picsart and make sure the sizing is 512px by 800px. You do this in the "crop" section.
Depending on what filters I want to add, I use either Picsart or Prequel. It's just mixing some random things until I like it.
For titles, I use Phonto. You have dozens of fonts in that app and can also add your own.
Next, moodboards!!
It's pretty much the same story. I search things close to the picture I showed. Once you find one good picture, you can scroll down and find many other things you like.
Once I have all my pictures, I go to the app Canva. Search for the right collage, and import your pictures.
I just reuse these by tapping the pictures and replacing them with the new ones.
For filters, Prequel and Picsart again. Then, if I want to add text, Phonto.
Hope this helped!