There was a Marionite Church in San Antonio. We always wanted to attend Mass there, but somehow never did.
Good news ... there still is a Maronite Church in San Antonio - St. Georges!
The Eastern Catholic Churches are most welcoming of visitors as you can see from St. George's web site.
The Vatican II Council declared that "all should realize it is of supreme importance to understand, venerate, preserve, and foster the exceedingly rich liturgical and spiritual heritage of the Eastern churches, in order faithfully to preserve the fullness of Christian tradition" (Unitatis Redintegrato, 15).
You should consider visiting this parish. You will not be disappointed.