I saw some of your previous posts and mostly about exchanges. I think that you had a bad experience with some exchanges in the past.

Yes, you are right that there are so many exchanges that we can find.
I see that you live in Canada, right?
I think that you can choose one of the best and top exchanges based on the lists on Coin market Cap:
https://coinmarketcap.com/rankings/exchanges/
The top lists are the preferred and recommended use.

You can choose one type of exchange as what @Oshosondy said above.
Just register in one of the exchange, for example https://www.binance.com/

But, the most important thing is that never trust anyone who want to help you trade the Bitcoin, ask your private key or phrase to access your wallet, or as you to send your Bitcoin first to him and he will send you the ETH. Never trust this because most of them are scams.