There are many types of granting agencies, from the U.S. government, private foundations (large and small), local community (government and private), to the GoFundMe website for crowd sourcing and fundraising on a more personal level. All of these sources may provide opportunities for your community partner to use. You want to vet these different agencies, confirm they are still operating, what their primary interest is, how competitive they are, and what their funding and reporting cycle is like.
Consider the following points as you search for appropriate granting agencies:
For local or regional grants, search Google for the terms grants agencies Texas you can add non-profit if you want to narrow results, or another suitable limiting word (education, reading, literacy, housing, the specific city or county where your group's headquarters are located, etc.).
You can use the Google box below which I've already set up with what I found to be usable search terms for the state of Texas.