Many big businesses are looking for social media influencers to become long-term ambassadors for their brand. This would involve you working closely with one particular band, and promoting their clothes, products, and services. You may also be restricted from promoting other brands, so check out the small print before agreeing to any long-term agreements.
Multi-vendor marketplaces, like ThemeForest, can be very successful. Chose a niche and create a vendor website for it. Your marketplace could be anything, from a platform for local artists to sell their work on, to an online digital product store. Once set up, invite people in that industry to sell their products on your site. You take a percentage of their profits when items sell.
The topic you choose must have enough depth that you can create a lot of content for it. This is important for building an authoritative site, for search engine optimization, and most importantly, for the end user. If you don't have enough content about a topic, you're not going to be taken very seriously as an authority on the topic and it's unlikely you can convince someone to make a purchase from you.
Promote products that are stepping stones to products you will create in the future. This is a bit more advanced, but is a great way to think ahead. Amy Porterfield suggests thinking about the first thing your followers will need in order to get started with what you provide. For example, I teach people how to blog, so the first thing they need to start a blog is hosting. That’s why I am an affiliate for hosting.
Affiliate marketing is commonly confused with referral marketing, as both forms of marketing use third parties to drive sales to the retailer. The two forms of marketing are differentiated, however, in how they drive sales, where affiliate marketing relies purely on financial motivations, while referral marketing relies more on trust and personal relationships.