There isn't a single "best" oceanography school in Texas, as the ideal program depends on individual research interests and career goals. Texas A&M University at Galveston is generally considered the leading institution in Texas for oceanography-related studies. They have a strong program with a dedicated location on the coast, offering direct access to research opportunities.
However, other universities in Texas may have strong programs in related fields like marine biology or coastal engineering that could be relevant depending on your specific interests. It's crucial to examine individual faculty research interests and specific course offerings at various universities to find the best fit.