Ain't nothing in this life for free.
Either you work and get paid in bitcoin, or work and get paid in [You local currency] that you sell for bitcoin. You could always do faucets, signature campaigns, make your own blog and get readers that create ad revenue, and so on. However, these are all basically jobs, so we're back to my first sentence.
If you have skills, your time will be easier. If you can code, do creative writing, translate, do rote tasks or design websites, you could get freelance jobs that pay in bitcoin fairly easily. Check the service section here, or google btc freelancer. Also, google is your friend when it comes to finding the kind of resources you are looking for!
Of course,nothing is free in this life.Instead of trying to get free bitcoins,you could try to join a signature campaign.You can even try to solve railblocks captcha which is very easy.For each 5 captchas you solve, you can get one mrai coin which is today 650 satoshis.Or else, you can try faucet sites, but the payment is very little.