Affiliate Egg - Niche Affiliate Marketing Wordpress Plugin v10.9.22
Any owner of successful affiliate website can tell you that best conversion and commission are in local popular shops.
Ronby v6.1.2 - 6 Niche Business Multi-Purpose WordPress Theme
Ronby theme is perfectly suitable for 6 niches (Agency Business, Medical, Restaurant, Fitness, Construction, Fashion Shop). Every niche is designed according to its purpose.