  The rise of twistronics has revolutionized the field of condensed matter
physics, and more specifically the future applications of two-dimensional
materials. At small twist angles, the microscopic world becomes strongly
correlated, and unexpected physical phenomena such as superconductivity emerge.
For magnetic layers, stacking plays a crucial role in the magnetic exchange
coupling between the layers leading to non-trivial spin configurations and flat
spin-wave dispersion when twisted. In this work, we give a short overview of
the most recent theoretical and experimental works reporting the effect of
twist angles on two-dimensional magnets. Besides, we discuss the effect of the
twist angle and the local antiferromagnetic interlayer exchange coupling on the
formation of antiferromagnetic domains in chromium trihalides. Finally, we show
some preliminary results on the effect of the stacking and the twist angle on
the spin-wave dispersion of bilayer CrI$_3$
