Periodic table of the elements indicating the considered cross-correlation templates in this work. The pink frames indicate the availability of sufficient absorption lines at 3,000 K (neutral atoms) and 4,000 K (ions) in the wavelength regions of HARPS & HARPS-N, ESPRESSO, and MAROON-X. The blue frames indicate the availability of sufficient absorption lines at 3,000 K (neutral atoms) but not for the ionised atom at higher temperatures. Templates for TiO, VO, and A1O are also available at 2,500 K. Cross-correlation analysis was performed for all of the available templates as indicated in this table and for the oxides mentioned above (90 species in total).