Determining the “best” affiliate marketing sites for maximum profits can depend on various factors such as your niche, target audience, and the products or services you’re promoting. However, here are some popular affiliate marketing platforms that are known for offering good commission rates and opportunities:

1. Amazon Associates: Amazon has a vast range of products, making it a popular choice for affiliate marketers. Commission rates vary depending on the product category but can be up to 10%.
2. ShareASale: ShareASale is an affiliate marketing network that connects merchants with affiliate marketers. It offers a wide range of products and services to promote, with varying commission rates.
3. ClickBank: ClickBank specializes in digital products such as e-books, software, and online courses. It’s known for high commission rates, sometimes up to 75% of the sale price.
4. Commission Junction (CJ Affiliate): CJ Affiliate is another large affiliate marketing network that connects advertisers with publishers. It offers a wide range of products and services to promote, with varying commission rates.
5. Rakuten Marketing: Formerly known as Rakuten Affiliate Network, this platform offers a variety of products and services from different merchants. Commission rates vary depending on the merchant.
6. FlexOffers: FlexOffers is an affiliate marketing network that offers various products and services to promote, with competitive commission rates.
7. Impact: Impact is an affiliate marketing platform that connects advertisers with publishers. It offers a range of products and services to promote, with varying commission rates.
8. MaxBounty: MaxBounty specializes in CPA (Cost Per Action) offers, where affiliates earn a commission for specific actions like sign-ups or form submissions.

Remember that the profitability of these affiliate marketing platforms depends not only on the commission rates but also on factors such as the quality of the products/services, relevance to your audience, and your marketing strategies. It’s essential to choose affiliate programs that align with your niche and audience interests to maximize your earning potential.