Toast or breadsticks with mashed avocado, mashed banana, peanut butter, or cream cheese.
Plain cereal of a size that can be easily picked up (e.g. mini shredded wheats) with milk.
Sticks of cucumber, celery and raw peppers.
Chunks of soft fruits.
Aubergine, courgette, peppers, squash, carrots, sweet potato etc cut into stick shapes and roasted in olive oil.
Strips of steak or chicken.
Babies of this age can have most things really, except salt, sugar, honey and whole nuts, and possibly not whole grapes or raw carrot or apple, which may break off in hard chunks and cause a choking hazard.
Most marketed baby snacks are processed junk, and are often high in sugar, though it may be in the form of 'concentrated grape juice' etc