What to do after you beat bugsy?

After defeating Bugsy, the Azalea Town Gym Leader in Pokémon Gold, Silver, or Crystal, you should head to the next area, which is the Ilex Forest. Before entering, make sure to talk to the NPCs in Azalea Town for any helpful items or information. Once you navigate through the forest, you can challenge the next Gym Leader in Goldenrod City. Additionally, consider training your Pokémon and catching new ones to strengthen your team for upcoming battles.