Hi @Linu, I recommend you to start collaborating with startups. I know from personal experience that the most loyal advertisers that offer the highest commission rates are startups because they need to grow from scratch and they aren't afraid of trying almost all types of advertising. And you can always discuss some exclusive conditions with them, even if you don't have much traffic.
For example, https://audext.com/affiliate-program/ offers a 35% of commission rate and offers many types of traffic and it pays within 30 days. Usually, it takes time to find similar programs but it's absolutely worth it. Good luck! ^^