From the other posts similar to yours, I have seen a lot of people recommend:
- Looking on Pinterest for ideas
- Look at the Pattern Wiki
For actually writing patterns, I suggest writing some free patterns so people can get an idea of how you create your patterns as there’s so many ways to write one thing.
To get an idea of how you want to write your patterns, I suggest looking at other people’s patterns for some inspo (not to copy though).
Some things you might want to include when writing patterns:
- detailed images on parts that may seem difficult
- An image of each piece + some progress photos when you’re creating the product.