V381 Normae
V381 Normae (XTE J1550−564): a black hole of about 9 solar masses and a K subgiant on a 1.54-day orbit.
Scenarios
Black Holes, page 2
Black holes at the true Schwarzschild scale, each with the star or stars bound to it. Sagittarius A* and the S-star cluster, the X-ray binaries, and the Gaia dormant black holes. Orbits use published periods and masses. Where a mass has not been measured, the description says so.
V404 Cygni
V404 Cygni, a 9-solar-mass black hole, and the K-giant donor that orbits it every 6.47 days.
V518 Persei
V518 Persei (GRO J0422+32): a black-hole candidate of uncertain mass, drawn at 4 solar masses, with an M dwarf on a 5.1-hour orbit.
V616 Monocerotis
V616 Monocerotis (A0620−00): a 6.6-solar-mass black hole and a K dwarf on a 7.75-hour orbit.
V821 Arae
V821 Arae (GX 339−4): a black hole heavier than 6 solar masses, drawn at 9, and a low-mass donor on a 1.76-day orbit.
XTE J1650-500
XTE J1650−500: a black hole lighter than 7.3 solar masses, drawn at 5, and a K dwarf on a 7.7-hour orbit.