To monetise anything you need
1 - an audience
2 - a product to sell to the audience
Your question is not clear on either of these points. So first you need to answer these questions:
Are the people in a single industry / areas of interest?
Where do other people who like that industry / interest area hang out?
What brands do they like?
Can you offer the brand access to your audience for a fee?
What add-on or associated services can you combine with your core product?
Consider the customer life-time - from newbie to leaving the brand - what are the stages you go through (CRM)?
What products and services can you offer that align with each stage and how can you help the brand stay relevant to the audience through each of these stages?
Go to work and write up your answers..... then we can give you more tasks.