Earn through Coinbase [about $30 in different cryptocurrencies]:
This is one of the most popular ways, although it is not really the quickest. You need a Coinbase account and to complete verification (so photo + document). Once you are verified, you will be put on a waiting list that usually lasts a couple of days.
Once you get accepted, all you have to do is watch a video explaining how a project works, and answer some questions about it. It is not anything hard and you can find the answers online.
Right now, you can earn XLM, COMP, CGLD, GRT, NU, but they often update it with a new project so definitely keep the account once verified.
Earn through CoinMarketCap Basically the same as Coinbase Earn, but hosted by CoinMarketCap. For this, you'll need a CoinMarketCap account (just needs e-mail and password) and a verified Binance account (which requires verification, but there's no waiting list once verified).
The payouts are slower than Coinbase Earn since they are distributed after weeks and not immediately.