There is no definitive answer to this question as it depends on individual preferences and intended uses for the rifle. Some factors that could be considered when choosing a scope for a Henry Golden Boy include budget, desired features and functions, expected shooting range, etc.
Some popular scope options for the Henry Golden Boy include fixed power scopes such as the Nikon Prostaff 3-9x40 or variable power scopes like the Leupold VX-2 3-9x33. These are both affordable options that offer good clarity and light gathering capabilities. For longer range shooting, a higher magnification scope would be necessary, such as the Leupold Mark 4 LR/T 8.5-25x50mm or the Vortex Viper PST 6-24x50mm.
Ultimately, it is important to choose a scope that meets your specific needs and preferences. Test out different models and brands at your local gun shop or shooting range to find the best option for you.