Can you post link of your faucet? I want to see to know you monetize your faucet now and how you can improve it.
Ot's not easy task to get profit from faucet. Owner of faucet must be creative and use all available methods to earn revenue. I understand that you don't want to use popups, owners of other faucets also don't want, but they are forced to do that to survive.
Another way to get revenue - shortlinks. On many faucets visitor must visit shortlink before claiming coins. Maybe you wont get big revenue from it, but still, it helps.
Javascript miners like Coinhive is another option. Many viditors hate such miners, so it's better to have warning on website if you're using it. But if you have small traffic - it's not worth to use it in my opinion.
And offcourse - advertising networks. There are lot of Bitcoin paying advertising networks -
http://www.bitcoins4free.ml/overview-bitcoin-advertising-networks/ . Not all of them accepts faucets, others have strict approval criteria. I recommend to check list and if you meet requirements on some of these networks - apply to it.
