High-protein foods include lean meats like beef, chicken, and turkey; fish such as salmon and tuna; dairy products like milk, yogurt, and cheese; eggs; nuts and seeds; and legumes like beans and lentils. 
Here’s a more detailed list:
Animal-based proteins:
Lean Meats:
Beef, pork, lamb, veal, chicken, turkey, and even kangaroo are good sources. 
Fish and Seafood:
Salmon, tuna, mackerel, shrimp, crab, lobster, mussels, oysters, and clams are excellent choices. 
Dairy:
Milk, yogurt (especially Greek yogurt), and cheese (especially cottage cheese) are good sources. 
Eggs:
A complete protein source, according to Johns Hopkins Medicine. 
Plant-based proteins:
Legumes and Beans: Lentils, chickpeas, all types of beans, split peas, and tofu are great options. 
Nuts and Seeds: Almonds, walnuts, macadamia nuts, hazelnuts, pumpkin seeds, sesame seeds, and sunflower seeds are good sources. 
Soy Products: Tofu, edamame, and soy milk are rich in protein. 
Other Protein Sources:
Quinoa: A complete protein grain, according to Healthline. 
Certain Vegetables: Some vegetables like peas, spinach, and broccoli also contain protein.