In this work three experimental schemes are described in the field of axion detection that are under
investigation within the context of the research call What Next of INFN. AXIOMA is a project
based on laser-spectroscopy techniques, QUAX exploits the interaction of the cosmological axion
with the spin of fermions (electrons or nucleons) and STAX is an improved detection scheme for
a light-shining-through-wall (LSW) experiment with sub-THz photons.