You may overlook some profitable niches in affiliate marketing. The pet care niche has a lot of potential. People love their pets and always need products. The home improvement niche is also growing. People are constantly looking to fix and upgrade their homes. The eco-friendly product niche is gaining popularity. Consumers are becoming more conscious of sustainability. The niche for hobbies like knitting or gardening can also bring profits. You may also find success in the niche for remote work tools. Many people are now working from home. Niche markets can be very profitable if you target the right audience.