Some of the best places to fish in Alaska include the Kenai Peninsula, particularly the Kenai River and Homer Spit for halibut fishing, Seward, Sitka, Kodiak Island, and the rivers around Juneau. Depending on the species you want to catch, all offer excellent salmon and halibut fishing opportunities; for freshwater fishing, consider the Chena River near Fairbanks for grayling and burbot. 

Key points about fishing in Alaska:

• Kenai River: Considered one of the best salmon fishing spots in Alaska, with runs of king, silver, red, and pink salmon. The best time is mid-July.
• Homer Spit: A prime location for catching halibut, often called the "halibut fishing capital of the world". 
• Seward: Offers great access to halibut fishing in Resurrection Bay. 
• Sitka and Kodiak Island: Also excellent for halibut fishing. 
• Juneau: Provides a mix of salmon and halibut fishing opportunities. 

Chena River (Fairbanks): Great for freshwater species like grayling and burbot.