Looking at your photos, your lateral incisors do not appear to be true peg laterals, which is when the lateral incisors are substantially undersized compared with the surrounding teeth. That said, I can see how making your laterals slightly wider and fuller could potentially create more balance and harmony in your smile. There are two main veneer options you could consider for just the lateral incisors: composite bonding veneers and porcelain veneers. Composite bonding is usually the less expensive option and can often be added directly over the existing teeth with little or no drilling. The tradeoff is that composite is generally not as durable as porcelain. Over time, it can stain, chip, or lose some of its polish and may need more maintenance. Porcelain veneers are typically more expensive, but they are usually stronger, more stain resistant, and tend to maintain their appearance for longer. Depending on the position and shape of your teeth, they can sometimes be done with a very conservative minimal-prep or even no-prep approach. One of the most important considerations when doing veneers on only two front teeth is shade matching. The veneers need to match the color, translucency, texture, and overall character of the neighboring natural teeth very closely. That is why I would recommend choosing a cosmetic dentist who has a lot of experience with limited veneer cases and can show before-and-after examples where only one or two teeth were treated. So yes, even though your laterals do not look dramatically undersized, you could still be a very reasonable candidate for making them slightly larger if your goal is better proportion and symmetry.