I think faucets worked really well to advertise other parts of websites other companies (of they held a stake in the faucet). I think it's hard to get returning visitors on faucets now that'll think it's worthwhile and a lot of the free to play defi gaming space might take over from faucets in the next few years too if they haven't already.

There used to be a site (either called faucetbox of faucethub - both might've existed that had premade scripts and an integrated API).

I still think it's best to have a prepaid advertisement or somewhere you can direct people to from your site (that you also own).