Shakepay for lower deposits and if you only plan on buying #bitcoin. Haven't had any problems and customer service is decent in my experience

Never used it yet but have heard good reviews of Bitcoin Well and the spreads look decent. They are apparently the cheapest to buy from in Canada.

Here is some handy sites to compare rates

https://cspread.ca/

https://rankfi.com/ca/crypto-exchanges/

Good luck!