OP, you can buy copper membership here on the forum, so you will be able to wear a member rank signature. Then be more active here.
Open
if you haven't yet your ANN in the micro earning section to promote your faucet. Then be active there and inform people of improvements on your website.
From time to time, run your own giveaway here. Give some bonuses to new users of your platform, for social media shares, sign up etc... I saw you implement a referral program on there, this is a good step in motivating people to share links to your faucet.
Try to find groups on Telegram, Facebook etc... which are dedicated to the faucets and earnings from there. be active there.
Check advertising networks
you can find some of them already shown on many faucets so try over them. For example, Mellowads even if I don't like them, there you can promote your website very cheap. They have daily free claims, which you can use for your promotion (something like free promotions over there)
The best is to search for famous/trusted people in the forum and try to promote your site using signature campaigns, social media campaigns, and others.
The Signature campaign is probably too expensive for him. He needs to invest a thousand and more dollars for a couple of weeks of promotions, the question is how effective it will be. it is also questionable how realistic it is to return the money invested
in a signature campaign through advertisements on his faucet.
Trusted people on the forum, have been here a long time and probably very few of them deal with faucets or don’t even visit the micro earning section. and that is where its potential users are.