Show your gratitude through charity. Allah ﷻ loves those believers who spend for His ﷻ cause. Any form of spending for His ﷻ cause, for Allah ﷻ pleasure alone, and you will surely be rewarded in abundance!

Give charity in the name of any members of your family and friends that may have departed from this world.

Abu Hurayrah, rahimahullah, reported that Allah's Messenger, sallallahu 'alayhi wa sallam, said:

"When a human being dies, all of his deeds are terminated except for three types: an ongoing sadaqah, a knowledge (of Islam) from which others benefit, and a righteous child who makes du'a for him."
Muslim and others

Abu Qatadah, rahimahullah, reported that Allah's Messenger, sallallahu 'alayhi wa sallam, said:

"The best that a man can leave behind after his death are three things: a righteous child who makes du'a for him, an ongoing sadaqah whose rewards continue to reach him, and a knowledge that continues to be implemented after him."
Ibn Majah