Focus on what you're good at. What interests you, what do you enjoy? If there's something you've always loved that has any possibility of a commercial link (and in this day and age, even water has been commercialized), then build upon that and help others to find your info/webpage/blog/ebook. You really can do anything, but you can't just blag it, you have to stay true and honest to what is possible for yourself and your enthusiasm will only come across if you're genuinely into that interest.
Fiverr: Israeli-based Fivver was started in 2010 by Shal Wininger and Micha Kaufam. It's a great resource for selling just about any service online. You can offer gigs as low as $5 but also get paid much more for upgrades and add-ons. There are plenty of providers earning 6 figures on Fiverr so it's definitely a worthwhile cause for generating a healthy income. Just ensure that you provide some serious value.
Creating your own food blog, will not only be fun, but done well it should also be profitable. Link your site to affiliate cooking products, sell your food photos, create and sell your own physical cookbook, or launch a cooking app. Equally, you could turn your cooking blog into a membership site. You would then share all your content, including recipes, how to videos, food photographs, and much more, with only your paid up members.
Even if you never monetize your site, you might be able to sell out for a pretty penny! If you build the traffic of your site or otherwise have an audience, there is value there. If the traffic is high enough, you could sell for a lot (think Twitter kind of traffic…). And of course, people buy brand new sites all the time that have no traffic or audience based on design and niche (but usually for very cheap).
Become an Amazon Associate and then use Keyword planner to find an in-demand niche: With more than a million different products to choose from and up to 10% commission the sales you drive, Amazon’s affiliate program is a great place to get started. Browse their available products and see what connects with you. Or take it a step further and use Google’s Keyword Planner to quickly check how many people are searching for a specific term. With affiliate marketing, the more relevant traffic you can pull in, the more you’ll make off your site.
My suggestion for you would be to kill all your website and create a one large website. From there you will have much more time to write content and promote your website because now you spend countless hours on maintenance alone and that’s not efficient. Large websites are much better received by Google and it is going to be much easier to monetize your website.