1) Best way open your Exchange service  on  Paxful or localbitcoin and earn from it .

100 bitcoin for 80$ paypal or payeer .

and when back from payeer to btc

100 payeer == 90$ btc


so you earn about 30$ every 100$

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if you make 2 deals daily you can earn 50$


50*30 = 1500$

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2) Affiliate  service

make service   every one who sign in from  your url  will get 5$

many Affiliate give you about 20$ for every sign in + success sell/buy

100 user /month will pay 500$ and earn 2000$


if you need more ideas pm me