Find some local business - if you have an extra space in your home invest in Airbnb, rent your room and earn some extra money.
It's a booming business, the rent economy is becoming bigger and keeps on growing. You need to plan it well so that it will be attractive to the customers, this is another business that I'll start if my crypto investments bear fruits.
Or invest in plant business - it is fastest growing business - although its slow but its worth investing.
It's a good business but you should also like what you do. Not just you'll enter because somebody said that it's profitable but you have zero knowledge of it. It's better to not pursue such business or investment that you don't know about. If OP is in doubt of investing in bitcoin, he should think of it because it will always be profitable if you're not a short term minded person.
That is correct AIrbnb is a booming business - it requires a little investment and helps a good return if you are a good money manager. I am not very good in money dealing so I face trouble sometime. But then again - I always learn from mistakes and move fwd!