Friends who visit the gym, what’s your morning breakfast?

I’m planning to gift something thoughtful to my gym friends who only have milk in the morning. I honestly don’t know much about gym-related things like calories, protein, or what’s ideal for weight loss, so I’d love some suggestions! What’s a good, healthy breakfast option for someone working out and aiming to lose weight? I want to make sure the gift is both useful and appreciated. Should I consider something like protein powders, healthy snacks, or meal kits? Please share your ideas or what works best for you!