The answer to 'best retaining wall' is that the best type of retaining wall for your home depends on several factors, including the size and slope of the area, the soil conditions, and your budget. Retaining walls can be made from a variety of materials, such as concrete, stone, or interlocking blocks, and each type has its own advantages and disadvantages.
Concrete retaining walls are durable and long-lasting, but they can be more expensive to install. Stone retaining walls are attractive and blend well with natural landscapes, but they require more labor-intensive installation. Interlocking block retaining walls are a popular choice because they are relatively easy to install and can be customized to fit your specific needs.