If you have a few bucks you can part with, here are some ways to give. These are organizations to which I donate.
Harvey in Texas and across the Southern US:
*These come from reliable, legitimate sources but you should always do your due diligence.
Here Are Ways You Can Help People During Hurricane Harvey
Hurricane Harvey: Here’s How to Help
Oregon Wildfires (there are so many going on in other states, too):
http://www.redcross.org/local/oregon/ways-to-donate/wildfires
International Humanitarian Aid