I love adding hemp protein to smoothies. I recently purchased some from an online store (link below) - It offers 16g protein in 32g serving. I'm sure you'll be able to find some in any local health food store.
chia seeds are a favourite of mine. you can add them to heaps of different things like protein bars, puddings, etc or just sprinkle them on top of salads and they're not only high in protein but high in omega3 as well