What is the best method with which to share the Gospel?

Personally I'm far more impressed when I see people actually living their beliefs rather than talking about them. You don't see many Christians doing that.

Live your life as GOD prescribes in the Bible. In other words, let others see GOD in you. Not an easy thing to do.

GOD bless

Do just as Jesus Christ instructed albeit using  methods to ''go'' due to restrictions caused by lockdown,  we use zoom, letter writing, talking at a safe distance if allowed, in Britain we're on full lockdown. The point is we do as commanded by Jesus Christ told us,see Mathew  28:18 - 20. We are well blessed with the communication devices we have today that enable us to still, in a virtual way ''go and make disciples,'' and it is working.

Example of someone turning the other cheek & giving everything he has away

Stay close to God, learn humility, and then let Him take the lead; He knows where best to use you and how.

If I wanted to convince YOU that pouring vinegar onto baking soda DOES produce bubbles of carbon dioxide, I would provide you with evidence which is instantly visible, rigorously testable, and unfailingly consistent.

If you want to convince ME that a God or Goddess actually exists, simply provide similar evidence.

(Please note that, no matter how SINCERELY one may apply a Thumbs Down to this answer, that is NOT evidence.)

You can't share it with people that have already read it.

1. Live a Christ like life.

2. Bear sincere testimony of the things that you have come to know in your heart to be true through the power of the Holy Ghost. But there can be no hypocricy or dishonesty. You must know. The spirit will then carry your message to the hearts of those who hear and they will sense a certain familiararity and truthfulness of the message. 

3. The conversation cannot be one sided. Learn to patiently listen to and address THEIR needs and questions, thus building trust.

Being preachy, intellectualizing the bible or telling someone to take it on faith will not work but will likely push people away. It can't be about you. People do not want to be controlled, manipulated or lied to. Neither do they want to feel like you have made them a project. It must be done in sincerety and love. You can back up your teachings with a few bible verses, but teach them how they can come to gain their own personal revelation that these things are true. But you need to get your own revelation first.

First, make sure the person you want to share it with is interested.  I spent 4 hour trapped on a flight one time with a lady who decided I needed to be "saved".  After an hour, I put in my headphones, and she had the nerve to yank one out by the wire as she wasn't done.  I told her that if she did it again, I'd break her fingers.  She called the flight attendant over and asked for another seat because I had "threatened her".  I calmly explained to the flight attendant what had happened.  The flight anntendant informed her that there were not other seats, and she should keep her hands to herself.  She spent the remaining 2.5 hours loudly sighing and acting like.a victim.  Don't be like that lady. You might get your gfingers snapped. 

Don't bother. We've all heard it.