A glove comparable to the Nokona Alpha Select Series Baseball Glove: S-200 Youth is the Nokona X2 Elite 11.25" Youth Baseball Glove: X2-200M. The Nokona X2 Elite 11.25" Youth Baseball Glove: X2-200M is available in a left hand thrower, features the same web type, web pattern, and fit for a youth player. The difference between the two gloves is the leather used to manufacturer the glove. Both leathers are very high quality but the Nokona X2 Elite 11.25" Youth Baseball Glove: X2-200M features Kangaroo leather which is extremely durable yet very lightweight.
I would not let the reviews that mention a "lack of padding" scare you from purchasing this Nokona Alpha Select Series Baseball Glove (S-200 Youth). Overall, this S-200 is going to be the best mitt available for a 9 year old player that needs a smaller fitting glove and great leather quality. In my opinion, the palm padding will be adequate. As well, if the ball is consistently being caught in pocket of the mitt (where the palm and webbing meet), the palm padding won't be a factor as the web will be taking most of the impact of the ball.
The Nokona Alpha Select Series Baseball Glove: S-200 Youth offers a youth fit, so it would work well for your player.