Currently, average person cannot buy whole Bitcoin due to the high price. But there were times when 1 BTC was affordable by literally everyone, even a child.
Currently the same is with satoshis, everyone can afford some and there is a kind of movement now on the net saying "stack satoshis". So just get as many as you can.
If you have initial money or some crypto, I really recommend to read and try, all of those work and been checked by me many times. I also update this product.
So every day try to get few satoshis. If you have none a good start is those 2 faucets with games - they work 100% - FreeBitcoin and Cointiply which i use daily, even 1 time a day i still ty to click there. Costs really nothing and they do pay out.
The Cointiply pays you to watch tv ads, play games and soo many thing. And Freebitcoin has freerolls of Lamborhgini ;)
Else? Loans. The loans in crypto are becoming big but will be full of scams. I wrote post some day ago about cloud mining on one thing that gives you 100 Gh/s right away with my code but for big amounts there is only one place i would put money into because Winklevoss support it.
What is it ? BlockFi and really, BTC rates there are pretty good and i trust Gemini.