1. Digital Marketing is guaranteed to earn at least $500+/day.
2. Job as a Virtual Assistant may earn one $150/day from these sites; fiverr.com, upwork.com.
3. Reviewing Songs is also expected to earn on an average, $200/day.
4. Watching Ads is one I find quite fascinating, but it is sure to earn one $100/day.
There are also others I may not know. Please do feel free to add up some side hustle ideas you know that could be very useful in this new year, mostly as the halving is expected and the dream of still owning some BTC investments haunts many of us.
Apart from that, if we talk about looking for capital or passive income with the aim of investing in bitcoin. I think working in the real world is a good job too to earn passive income. Such as being a trader (small/large scale), providing rental services, such as car rental and computer rental. And in my personal opinion, to be able to set aside money to invest in Bitcoin you don't always have to use money from passive income. But from a job that has active income, I think will be more stable in managing your finances. Because when we have a job that has an active income every month, we can definitely see how much salary we will receive every month. So that way managing your finances will feel easier.