I will go Centralized exchanges, DEX like balancer and uniswap are good but still not preferred to CEX for me, also DEX are now more dangerous for newbies than CEX because cloned tokens can get listed on DEX without anyone investigating on the tokens,

1. Bithumb
2. Bkex
3. Coinone

Also it's not that good to go straight on top exchanges first, it should come later, I have my reasons for that