Anyone can make a little extra money with online dating, and some can make a lot of cash. The income generated is proportional to the amount of effort you put in. These sites will give you a good starting point. You can use simple affiliate links, create a co-branded site, or run a completely independent site of your own.
You don't need to know how to code websites as most of the code is provided for you and you just copy and paste it in wherever it's needed. There are often few start-up costs but you will need to invest in promotion and marketing for the best results.