Ronald Ramirez on baseball cards

Infielder Ronald Ramirez played five seasons of professional baseball, mostly in the Astros organization. In 318 games he hit .243 with 9 HR and 91 RBI. He kindly answered my questions about baseball cards.

"Just have been collecting about four baseball cards because I don't know to find the rest of the cards."

Thanks! Any good suggestions for finding his cards?