It will take money to make money, there's no easy way to make money now in bounty and airdrops so many of them are scam out of 100 airdrops or giveaways you are lucky if you can get at least 5 good projects, investing, and trading on coins that are already in the market is more profitable than investing your time in airdrops and giveaways.
Indeed, bounties and airdrops are not profitable just like before due to numerous scam projects that are existing.
Investing in a popular coins are much better in order to earn in crypto.
But this require a knowledge to the coin you'll going to invest to better understand its flow.