  In this work we carry out an exhaustive study to find quark mass matrices in
the Standard Model~(SM), with the maximum number of texture zeros consistent
with the experimental data. We found four viable configurations of five texture
zeros that adjust the quark masses, the mixing angles and the CP violation
phase, with deviations below $1\sigma$ level respect to the current SM best fit
values. One of the most important aspects of this work is an economic procedure
to find the texture zeros: we resort to the weak basis transformation method,
which, as we will show, exhaustively search every possible configuration. We
report various leading order relations between the mixing angles and the quark
masses for each case.
