  Context. Stellar tidal streams are the result of tidal interactions between a
central galaxy and lower mass systems like satellite galaxies or globular
clusters. For the Local Group, many diffuse substructures have been identified
and their link to the galaxy evolution has been traced. However it cannot be
assumed that the Milky Way or M31 are representative of their galaxy class, and
a larger sample of analogue galaxies beyond the Local Group is required to be
able to generalise the underlying theory.
  Aims. We want to characterise photometrically the stellar streams around
Milky Way analogues in the local Universe with the goal to deepen our
understanding of the interaction between host and satellite galaxies, and
ultimately of the galaxy formation and evolution processes.
  Methods. In the present work we identified and analysed stellar tidal streams
around Milky Way analogue galaxies from the SAGA sample, using deep images of
the DESI Legacy Imaging Surveys (for this sample, we obtain a range of r-band
surface brightness limit between 27.8 and 29 mag / arcsec2). We measure the
surface brightness and colours of the detected streams using GNU Astronomy
Utilities software.
  Results. We identified 16 new stellar tidal streams around Milky Way analogue
galaxies at distances between 25 and 40 Mpc. Applying statistical analysis to
our findings for the SAGA II galaxy sample, we obtained a frequency of 12.2%
+/- 2.4% for stellar streams. We measured surface brightness and colours of the
detected streams, and the comparison to the dwarf satellite galaxies population
around galaxies belonging to the same SAGA sample shows that the mean colour of
the streams is 0.20 mag redder than that of the SAGA satellites; also, the
streams are, in average, 0.057 +/- 0.021 mag redder that their progenitor, for
those cases when a likely progenitor could be identified.
