NoSQL is big, anything that's not relational is NoSQL. So key/val, document, column. There's also object oriented database. This probably covers almost what

NoSQL is big, anything that's not relational is NoSQL. So key/val, document, column. There's also object oriented database. This probably covers almost what you're looking for - https://en.wikipedia.org/wiki/NoSQL https://en.wikipedia.org/wiki/NoSQL