Check out the page for the 39th district MWS - Masters Wardens Secretaries Association
http://mwsa39.albertpikedemolay.org/
Click on the left - Lodge Directory
The site offers a map of the GLofTX lodges in the San Antonio area and it has address and time of Stated meeting for all of the lodges.
When there are a lot of lodges to chose from there are several criteria to consider. Closeness to home, to work, to other places you go. If day of meetings conflict with standing calendar entries you have. Do you want a large active lodge to be a small fish in a big pond so following works well or do you want a small intimate lodge to be a big fish in a small pond but you will need to be proactive. An old or new lodge in history; an old or young lodge in demographics.
The more you know what you're looking for the fewer you'll need to visit before narrowing down your decision to affiliate, and vice versa.
Your profile doesn't say if you are already a brother. If you have friends at one of the local lodges that's likely the one to petition, but you need to show up to meet the brethren and get to know them. If you know plenty of locals there will be members of at least one local lodge who you didn't know/notice is a Mason.