In the work \cite{Laredo}, the author shows that every hypersurface in Euclidean space is locally associated to the unit sphere by a sphere congruence, whose radius function $R$ is a geometric invariant of hypersurface. In this paper, we define the spherical mean curvature $H_S$ for any surface $\Sigma$, which depends on the principal curvatures of $\Sigma$ and the radius function $R$. We then explore two classes of surfaces: those with $H_S = 0$, referred to as $H_1$-surfaces, and the surfaces with spherical mean curvature of harmonic type, denoted as $H_2$-surfaces.
We provide a Weierstrass-type representation for each of these classes depending on three holomorphic functions. We prove that the $H_1$-surfaces are associated to the minimal surfaces, whereas the $H_2$-surfaces are related to Laguerre minimal surfaces. As an application, we present a new Weierstrass-type representation for Laguerre minimal surfaces, and specifically for minimal surfaces. In this way, the same holomorphic data can be used to provide examples in $H_1$-surface/minimal surface classes or in $H_2$-surface/Laguerre minimal surface classes. We also characterize the rotational cases, allowing us to find a complete rotational Laguerre minimal surface.