Men's Wearhouse, Andre Emilio and Jos A. Bank are both popular options for low-to-mid range men's suits. They offer a wide selection of suits and have locations across the country, including in Richmond. While the quality may not be as high as some more expensive brands, they are a good option for a teenager who may still be growing and needs an affordable suit.

Another option to consider in Richmond is Dillard's. They offer a variety of suit brands at affordable prices, and they have a location in the Short Pump Town Center.

If you're open to shopping online, there are also several affordable suit options, such as J.Crew Factory, H&M, and ASOS. These retailers offer a range of suits at lower prices, but it's important to note that the quality may not be as high as more expensive brands.

Regardless of where you shop, it's important to make sure the suit fits well and is appropriate for the occasion. Consider taking your teenager to a store to get measured and try on suits to find the best fit and style for him.