First, I want to make things clear. Maybe this is not the business plan you are looking for but I know for sure that you can make money out of this or even build a real long term business if you work hard for it, but it is ok if you just want to make a quick buck online.
Reviews are easy to do and anyone can do it because they want normal people to give them feedback, people like you. The reviews I am going to recommend you are website reviews.
There are a lot of different sites but the one I used in the past is User Testing, all you need to do is sign up and make a simple test before you can do any real review.
You do not need a camera, just a microphone, and some decent English, I am not the best when comes to speaking English and I was able to do it so do not worry too much.
They will provide you with a simple software, you need it to record your screen and your voice while doing the review. When you start receiving offers you can choose which one to do, and how it works is simple. The client provides you with tasks that you need to follow like "try to find this product", "try ordering this book", pretty simple stuff.
You need to speak loud and clear, say everything you think. Do you like the website? It feels good as a user? Hard to navigate? Hard to find something? Do you see it like a mess? Anything you can add will be awesome for the client.
These reviews are pretty short, between 10-15 minutes of your time. They pay you $10 for each review and $15 for app reviews. To do any app review you need a phone and their special app to record your screen while you are on the phone.
The client will provide feedback from your review, try to best because the better your account the more reviews you will receive. You cannot do as many as you want because there is a pre-stage where you need to fill some demographics, maybe the client wants feedback from a single country, try not to lie because they know.
They pay you exactly 7 days after you submit your review, on Paypal.
I think I cannot leave links here so you need to find it on Google, if you have questions about this just ask me because I did some pretty good money there, at least give it a try!
Gig creation on Fiverr
Fiverr can be hard for someone without experience but it can be done. All you need to do is to be able to provide something helpful in demand that you can do in a short time. Maybe a video, maybe some buttons, maybe translations, depends on you and your abilities. There are people doing any kind of stuff so I am sure you can do something.
The hard part is to make sales, to start with you can use email lists, to find them just search on Google "best email lists". This will not make you any sale and you need this only to get started since you can get a lot of impressions to stand out, this way your GiG will be on the search engine inside Fiverr and most people can find you right away.
Works pretty simple, all you need is to create 1 or 2 Gmail accounts because most of them work that way, do not use your personal email because you will receive a bunch of shit from other people. You can send an email to X amount of people for exchange of points, you receive free points from day one but you gain more you need to open and click some emails. As I told you, no one will buy anything from you so use it only to make impressions to your GiG, people will open your emails to make points not to buy your GiG.
Once you get some clients and experience you can start depending on Fiverr to promote you or you can do your thing on social media, maybe email marketing, anything to find more clients.
This could be a little bit harder, only because you need to provide something awesome. Maybe graphics, templates, proofread, maybe you are a writer so you can make a book or blog posts, just explore all your possibilities and find a niche inside any freelance site.
The most popular are Freelancer and Upwork.
Create your account and add a cool portfolio, the better your portfolio the better are your chances of getting hired. The first clients will be the hardest part, once you get some feedback on your account, people will trust you and finding clients will be easy.
Be professional and provide a very well written proposal when submitting your bid, most of these sites works with a bid system. You can create your free account with an X amount of free bids per months that will be refreshed each month, but you can pay for more or even upgrade your account to premium to have even more bids per month.
Find small jobs first, you are not going to get the good ones with a new profile, even if you are not doing good money all you need is some good feedback to get started.
Be original and tell the client all of you and how you can help them because some other people will be bidding to make the same job you want.
If you are an expert on any digital resource you can try Envato where you can find sites like Themeforest (for templates or full websites), Audiojungle (for any sound or music), Codecanyon (for any code or script) and you can be a seller there with a 50%-50% to begin with and if you make enough sales in your account you can get a maximum of 75% for you. The level is very high so you need to know what you are doing, otherwise, your files will never be accepted, even for professionals it takes a few tries to understand the rules and how to do it properly.
The last one here is Tutplus, a blog from Envato where you can write tutorials to get paid, just explore and see the content there to know if you can do that, they pay between $100 and $150 per tutorial if you can create premium content even more.
Ebay or Amazon are great, if you have something to sell you can do it there pretty easy and simple, you can even buy something near your house and be a seller there, why not giving it a chance?
That is everything, for now, hope you find it helpful and if you need help with any of these just ask! Have a good week!