  We investigate the formation of multipole topological solitons at the edges
of two and three coupled parallel Su-Schrieffer-Heeger (SSH) waveguide arrays.
We show that independent variations of waveguide spacing in the unit cells
(dimers) in coupled waveguide arrays result in the emergence at their edges of
several topological edge states with different internal symmetry. The number of
emerging edge states is determined by how many arrays are in topologically
nontrivial phase. In the presence of nonlinearity, such edge states give rise
to families of multipole topological edge solitons with distinct stability
properties. Our results illustrate that coupling between quasi-one-dimensional
topological structures substantially enriches the variety of stable topological
edge solitons existing in them.
