I'm sure, many sources can help you. I used to buy Bitcoin using cryptolinks.com. This source is a perfect variant for new crypto users and provides much useful information. I hope you will also find it useful. Good luck!
I think the easiest and fastest way to buy Bitcoin is to find the best cryptocurrency exchange. In most cases, I use HitBTC or Bitfinex. In case you are a newbie and want to find out more about the most popular and trusted exchanges, I recommend looking through other crypto users' reviews. There exists a great cryptocurrency platform called Revain https://revain.org/exchanges. You can read reviews there. Hope it helps!
