Ramadhan Sunnah - Give Food to Fasting Person

The Prophet (pbuh) said:

“Whoever gives food to a fasting person with which to break his fast, will have a reward equal to his, without it detracting in the slightest from the reward of the fasting person.”

[Tirmidhi]

There are plenty of ways to fulfill this sunnah- we can invite people for iftaar, take some food to the mosque with which people can break their fast or donate money to organizations that prepare iftaar for the poor.