San Antonio Federal Credit Union (SACU) has some competitive certificate rates with a yield as high as 5.25% APY for a 3 year term. The 5.25% yield requires a $90K minimum deposit. The yield for a $10K minimum is 5.20% APY, and the yield for a $1,000 minimum is 5.15% APY. The 24-month CD has a yield 5 basis points lower, and the 12-month CD has a yield 15 basis points lower.
The credit union is still offering 6.01% on its reward checking account called mY Generation Checking. I have more info on this reward checking account in this September post.
Membership is open to those who work for government or financial institutions in San Antonio or those in college in San Antonio. You can also be eligible via Select Employer Groups in San Antonio and in Houston and via family. Please refer to their membership application page for more details. Membership requires a minimum $5 deposit into the share savings account.
Branches are located in both Houston and San Antonio. The credit union is federally insured by the NCUA (Charter # 24382). It's a large credit union with $2.3 billion in assets and 242,218 members.