Wondering where can I find a reliable place to buy and trade Crypto?

There is actually no one-size-fits-all exchange for us. Generally speaking there are two main types of exchanges, one that has fiat pairing (ie, takes in SGD) and one that doesnt.

The general practice is to convert your SGD to either BTC or ETH via one of the fiat exchanges first, and then you may use another exchange to convert them to the cryptocurrencies of your liking.

I've done a breakdown of some of the best cryptocurrency exchange that has fiat pairing at https://geek.sg/blog/complete-guide-to-buying-b.... The best exchange depends on the amount you are looking at trading, your proficiency level with complex UX, trading fees, etc.

For non-fiat exchanges, I'm currently using Poloniex and Liquid for access to most pairs. If they are not there, I usually can find them on Changelly. Finally, if they are not there, Uniswap will definitely have it (but gas fees on Ethereum are kind of crazy high now). ​​​

Binance, Bittrex are good trading platforms. But before you can use them, you need to use a wallet like coinhako to purchase Bitcoin (BTC) and transfer them to the trading platforms. When you're done with your trades, you can trade your BTC from your trading platforms back into your wallet and withdraw them directly into your bank account.

crypto.com and Coinbase

If you are referring to fiat to crypto trading you can look at Binance SG (0.6% fees), if you are looking to trade crypto to crypto pairings you can buy on binance SG then trf to a binance account