Notes. The first two columns give the star name and the HD number. Columns 3 and 4 give the coordinates of the target, while the next column gives the V-band magnitude. In the column “SpT” we give the most recent spectral type from literature and in “SpT Refs” the corresponding spectral type reference. Individual comments on each target are given in the “Comments” column (see notes for the abbreviations used). The last column for which the table is sorted for indicates the binarity class we assigned it to, where i indicates binaries with confirmed post-MS companion; ii indicates binaries with companions with unknown, uncertain or debated nature; iii indicates Be stars with confirmed MS companions (this class is empty, see Sect. 4), and iv indicates presumably single stars. The following abbreviations are used in the comment column: “App” indicates that the there is a more detailed comment in the Appendix B. “Ker19” indicates that Kervella et al. (2019) detect the star in their sample (see Appendix B.1). “Wang18” means that Wang et al. (2018) included the star in their sample but did not detect the signature of a companion. “runaway” indicates that the star was classified as runaway candidate in the literature. “Kle19” indicates that Klement et al. (2019) find an SED turndown indicative of a close binary companion. A full version of this table is available at the CDS. The first few lines are shown as an example.