There are many ways but as you are newbie, you have many restriction. Like you shouldn't jump Crypto trading, that would be loss project for you. Rather bounty and airdrop could be good opportunity for you. You just need to invest your time and need to gain knowledge about Crypto field so that you can have ability to analysis project and thus you can find good project to go with. Rather you can be web developer or designer, it have good value and income in crypto
If newbies learn well then he can do trading but it requires money and knowledge without which one cannot earn easily. Even if you learn well then there is no guarantee that you will win from each trade as the market does not move as you wish.
Airdrop and bounties are good but some worthy Airdrops require money and if a participant is not in the will to use his money then he cannot get airdrop otherwise Airdrops are a good opportunity if one participates in every Airdrops either it's free or needs money.
In the crypto field nothing can be achieved without knowledge so for trading, investment, bounties, Airdrops and anything else you have to be fully prepared for the outcomes and should participate after getting Knowledge.