For me I would choose a program with Recurring commission. You can build a real passive income. Its the best way to go! One suggestion is contact companies who sell services and ask if you can sell their service for them. Sometimes popular affiliate programs like these have just way too many people trying to sell their service. I personally went to sitecare.ca and asked them if I could sell their service and I couldn’t be happier! So find a service you believe in and go for it!
In addition, you must know how much you want to earn by joining affiliate programs. Will it be your main source of income or just an additional one? For the first scenario, you should consider promoting products that are expensive and, consequently, that can bring you a good profit. If you plan on the second scenario, you can opt for affiliate programs that pay for sign ups or affiliate programs that pay daily.