Histogram of inferred orbital periods and companion masses for all RGB stars showing excess scatter in RV and position based on DR3 summary diagnostics. The subset of promising candidates for dark companions with high inferred companion masses (≥3 M_⊙) is separated by the dashed vertical line. Also shown are the recovered parameters for Gaia BHs 2 and 3, and for the LAMOST BH candidate, all orbiting RGB stars (black markers). Our method successfully recovers Gaia BH 2 and the LAMOST binary as promising candidates for RGB+BH systems with high inferred companion masses. Gaia BH 3 is not among the identified candidates mostly because our method is less sensitive to objects at very long periods.