One program I am in is Wealthy Affiliate. I am a Premium Member of the site, and will probably remain one for life. The reason is that Wealthy Affiliate is more than just an affiliate marketing program, it is also a set of tools that anyone can use to turn a passion into a business.
As a premium member of Wealthy Affiliate a person gets access to custom domains. You get 25 free domains, plus you can purchase 25 custom domains at reasonable prices (usually around $13 per year each). These domains come complete with Word Press themes and plugins to support just about any kind of business. In addition to the domains members also get classes on everything you need to know to be effective in online marketing. Other benefits include online support from a community of Entrepreneurs that is focused on helping one another succeed. You will even get input and help from the owners of Wealthy Affiliate who keep busy blogging about various topics and answering questions. I’ve been in this program since January 2018, and I love it.
No matter what your interest (so long as it is legal) you can turn it into a business using the tools at Wealthy Affiliate. My interests generally lean towards the spiritual side of things, and using these tools I have built business sites dealing with Tarot, Meditation, Hermeticism, and Gnosticim as well as my various affiliate marketing programs. As long as you are passionate about it and willing to put in the work needed, you can probably build a successful business around it.
Wealthy Affiliate has an affiliate marketing program for those who just want to market the program itself, and also has classes on how to do affiliate marketing using other services and products too. The site even offers live classes online that occur weekly, and numerous written and video courses a person can take at their own speed. There is a lot to this program; enough to keep you growing for a long long time.
The cost of this program is $49 per month for Premium Membership. If you want to check it out for yourself, there is a 7 DAY FREE TRIAL followed by a discount for your first months membership if you decide to join as a full member. So, if this appeals to you, just click the link below. For those wanting to start their own Online Business, this program is exceptional!