Pair Eyewear is popular for its "top frames"—magnetic covers that let you change the color or pattern of your glasses instantly. Best In-Store & Local Options Where to buy glasses frames in Alamo? - Facebook

Warby Parker offers a curated selection of stylish, high-quality frames and a famous "Home Try-On" program where they mail you five pairs for free.

Zenni Optical is widely considered the king of affordability, with frames often starting under $20.