The only true answer is: it depends
You can make money per ad shown, ad, clicked, or even get a part of the revenue lifetime if a user on your site becomes a paying member somewhere else through your advertisement
As you can see in OP pics, if your ad makes a user subscribe to an onlyfans model, you can get up to 35% of whatever the user pays to onlyfans until he cancels the subscription.
Surprisingly most onlyfans model can only be advertised in US, UK, Canada, Australia and NZ. Few allow sjowing ads to European or even Asian traffic. Perhaps onlyfans is much bigger in the anglosphere than it is here?
There are also fixed bounties for generating someone a paying user. Everything from a few euros to as much as 160€ direct payout.
However the real reason why I want ads is that I want to show them as an excuse to keep my site online to sell my users a premium account, with the main benefit being an ad free experience.