Looking to be charitable but do not have the extra money to give? Why not give blood?!
To quote the WHO: Blood is the most precious gift that anyone can give to another person — the gift of life. A decision to donate your blood can save a life, or even several if your blood is separated into its components — red cells, platelets and plasma — which can be used individually for patients with specific conditions.”

For the USA: https://www.redcrossblood.org/give.html/find-drive
Canada: https://www.blood.ca/en
Europe: https://europeanbloodalliance.eu/
Australia: https://www.donateblood.com.au/
New Zealand: https://www.nzblood.co.nz/give-blood/
Japan: http://www.jrc.or.jp/english/activity/blood/
Netherlands: https://www.sanquin.nl/en/locations
South Africa https://sanbs.org.za/
Russia: https://yadonor.ru/
Croatia: http://hztm.hr/hr/content/1/naslovna/
Chile: https://www.minsal.cl/dona-sangre/

Leave a comment and link if I missed your country!