Additional ways to make money

I'm not really into trading coins. At the moment, I mainly just invest and hope to sell when/if the price reaches a point which I'm happy to cash out at. I've been making money online since 2005 and have pretty much tried everything going. However, I'm always on the lookout for new ways which are emerging through the cracks as the internet evolves.

What ways do you make money online?

Here are what I've had the most success with:

1. Affiliate Marketing - How I got into making money online back in 2005. Had some very successful sites which earned quite a lot over the years. No into this so much anymore as family & other commitments took over but may get back into it at some point.

2. Matched Betting - Initially heard about this from a friend a few years back and have been doing it ever since. After 26 months, my total profit is £28,476 (as of today). I also didn't keep track for the first 3 months.

3. eBay reselling - An old one but if you find a good product, you can bring in a nice amount of profit. Key is to get in there early with what is selling (and will keep selling until you set up) and source it cheap.

4. Dropshipping - Another old one but it can be good when done right. Tbh, I haven't done this a lot but I'm testing it now with 'print on demand' services and it's started Ok. If it turns out to be worth the initial effort, I plan to upscale it in more popular niches.

Let me know your thoughts and methods you use to earn an additional income.