  This paper studies Einstein-Gauss-Bonnet (EGB) black holes surrounded by
three phenomenological distributions of dark matter halos. The main result is
obtaining the analytical solutions for the metric and all thermodynamic
quantities, such as Hawking temperature, entropy, constant-volume heat
capacity, and Gibbs free energy for static and stationary black hole solutions.
Consequently, we determine a non-null horizon radius at which the black hole
halts its evaporation by vanishing the temperature, indicating the emergence of
remnants. In the stationary case, we also obtain the ergosphere regions for the
found solutions and compare them. Finally, we find local and global phase
transitions by studying the behavior of the heat capacity and Gibbs free
energy.
