not all the business needs much investment - when COVID hit - many people started their side hustle from their home and they earned so much with zero investment
The side hustle needs dedication and that is the only thing which can make a business successful
There's affiliate marketing which is already known. You don't have to invest in stocks and products. The logic and simplest explanation of it is that you'll be promoting others' products and you need to use their affiliate link for you to have it count when someone clicks and buys the product you endorsed.
This is a side hustle but if you're able to make it your main niche and focus on the way of marketing it. You'll be able to earn a lot of passive income from it especially if you've made an interesting article/blog or video introducing the product and it gets viral.
during the Covid period until now in my country many online businesses have developed, especially the sales department, especially resellers, we can imagine when there is a layoff, and many people do not have sufficient capital to set up a business, besides that the risk is a scourge for those who have never started to running a business. therefore the reseller business is very promising and of course we don't need to produce goods to be sold, even just by working from home we can make money. besides that there is also a marketing system called drop shipping, we don't even know the form of the goods being sold, the product can reach the consumer and we get a service fee from the sale. and of course many of them who were only a side business actually earn more income than their salary working as employees, because of course they are not bound by time so they can be used as a side business
A crisis really makes everyone wants to find ways in surviving. That's all the main reason why everyone thrives to find a way to earn and make more for a living.
Even businessmen have done for sure a lot of things just to survive even if their businesses have struggled. The same goes for those employees that don't have a pandemic-proof job. Work-from-home setups have amazingly become a trend and it's good that many companies did what they have to do to give opportunities to those that have been in lock downs and looking to survive for their daily needs.
Now, the pandemic has taught a lot of opportunities shouldn't be taken for granted and everyone is striving to become better because of everything is unpredictable.