Least crowded gym?

Can anyone recommend the least crowded gym in Houston, ideally within 10 minutes of Montrose? I can’t go in the mornings consistently but the 24 hour fitness in Rice Village is a zoo after work.

Edit: also specifically looking for feedback on River Oaks Gym, timberline fitness (do they even have an open gym?) and Level One Fitness. I am also open to lifetime if it’s worth the cost