However, you can train for the eighth gym leader, Blaine, almost anywhere after you have access to Cinnabar Island.
Here are some specific locations you might want to consider:
* Route 16: This route offers a variety of Pokemon, including strong Fire-types (like Growlithe and Flareon) that can help you prepare for Blaine's team.
* Route 18: This route also offers a variety of Pokemon, including some Water-types that are strong against Fire-type Pokemon, which is ideal for preparing against Blaine's team.
* Seafoam Islands: This dungeon is full of strong Water-type Pokemon, which are perfect for training against Fire-types.
* Victory Road: This is the final dungeon before the Elite Four and features a range of powerful Pokemon, which can help you test your team's strength before taking on Blaine.
Important considerations:
* Blaine's team mainly consists of Fire-type Pokemon. You will want to train Pokemon that can effectively counter Fire-types, such as Water, Ground, Rock, and Grass types.
* The level range of Pokemon in Cinnabar Island is high. Make sure your Pokemon are adequately leveled before challenging Blaine.
Remember to always train your team thoroughly and choose the appropriate moves to maximize your chances of success.