Changing niches doesn't sound like a good idea to me. Your followers followed you because of the content and if you change it to something else, you will surely lose some of them and lose some engagement. Keep doing what works with this account and keep growing it in the niche that it's successful, so you don't risk destroying it with a niche switch. But start building out a new account that is about the niche that you think it will be more profitable and start promoting it with shoutouts on your tattoo account. In this way the people that would have stayed if you had changed the niche, would follow your other account and you will end up with two nice monetizable accounts. Just keep experimenting with ways to monetize your tattoo account and move to adjacent niches but just with the monetization efforts. Keep providing your followers with the content that got them hooked and experiment with your monetization. Btw, I'm sure there are much better ways to monetize people interested in tattoos than fake tattoos - those people like the real thing, so very few of them would go for the fake thing, but you can always dropship piercings, alternative jewelery, t-shirts and so on - things that are not directly related to tattoos but that might easily appeal to someone interested in tattoos. You could also add fitness stuff to your shop and mention a few products to your followers from time to time to see if it converts acceptably well. I'm sure it's hard to get tattoo parlors to pay for a shoutout because those are businesses that operate at a very specific physical location. So a tattoo parlor in Denver doesn't give a damn about your followers from NY, LA let alone followers from different countries, so you have to have a relevant following for a particular location to be able to attract brick and mortar businesses. So the locations of your followers also come into play while monetizing. People with different locations will be willing and/or able to purchase different things due to shipping costs, average local income, local product availability and so on. Experiment and learn more about your followers and find a way to sell them something they are willing and able to buy.