I am telling you about some such WordPress themes which work very well for affiliate marketing. Below are some of the best themes you can consider
Astra - This is a lightweight and fast-loading theme that contains pre-designed templates for different niches, including affiliate marketing.
GeneratePress - Another lightweight and customizable theme that offers pre-designed templates for affiliate marketing websites.
Divi - A versatile and highly customizable theme, it also includes a drag-and-drop page builder, which makes it easy to create unique designs.
OceanWP - This is a popular theme that offers lots of customization options and pre-designed templates for affiliate marketing.
Schema - This SEO-friendly theme has a clean and professional design, which is perfect for affiliate marketing websites.
Authority Pro - is a premium theme from StudioPress specially designed for bloggers and affiliate marketers.
Affiliate Booster - Jism is a popular theme with lots of pre-designed templates and features optimized for affiliate marketing.
While choosing a theme for your affiliate marketing website, make sure that it is mobile responsive, SEO-friendly and has features that you can use to effectively promote your affiliate products.