What Are Some Options for my Small Teeth? (photo)

You may not want the optimal treatment, but in fact, porcelain veneering is the ideal treatment for your small maxillary lateral incisors.  Your second option is direct composite plastic veneering.  In your case the composite veneering could probably be done without any drilling (tooth preparation) before the plastic composite is bonded on.  Another option is an all-ceramic crown.  But if you're objecting the the porcelain veneering treatment, then I'm sure you will feel that crowning your small teeth is way too aggressive.

Cosmetic bonding can be an alternative to veneers which is less expensive although bonding will not last as long as veneers and not every dentist is proficient in this skill. Cosmetic bonding is similar to veneers in that your are bonding the  material to existing tooth structure with minimal to no preparation. I would wait until you have completed your Invisalign treatment and go over these options with your dentist.

with a smile design, there are different solutions,

you can make them look bigger, with bondings, and they will look great, and natural, there is another option , with some gum techniques, and bonding to get a beatifull smile,

Not sure what problems you are thinking of.  In your case, I wouldn't even do Invisalign and simply place some "no prep" or "minimal prep" porcelain veneers on 7 and 10.  Would likely need to contour the gums first, but that is about it.  The only other option would simply be to close spaces with Invisalign and do nothing more.  The teeth will still be small.  Direct bonded composite veneers will look terrible in a short amount of time, but porcelain will not.  This does require being done by a skilled and experienced dentist.