Monetary donations are the most helpful. Here are some organizations that will see the money gets spent wisely. 

American Red Cross (Hurricane Maria, Hurricane Irma, Hurricane Harvey) -
http://rdcrss.org/2xlOfxg

Diocese of Victoria, Texas (Hurricane Harvey) -
https://www.victoriadiocese.org/donate-hurricane-relief

Archdiocese of Houston/Galveston (Hurricane Harvey) -
https://catholiccharities.org/donate-now-and-help-our-neighbors-recover-from-disaster/

Diocese of Corpus Christi (Hurricane Harvey) -
Mail a donation to Catholic Charities of Corpus Christi, Inc., 1322 Comanche Street, Corpus Christi, Texas 78401

Most importantly, please continue to pray for all of those affected by Hurricane Harvey, Hurricane Irma, and Hurricane Maria.