One of the latest and most complete lists of radial velocity standard stars is that by Soubiran et al. 2013, A&A, 552A, 64 (ADS link [1]):
"The catalogue of radial velocity standard stars for Gaia. I. Pre-launch release."
This catalog contains 1420 stars with data over a baseline of over 6 yr, with an overall stability of about 300 m/s
The data in their Table 4, can be accessed in the CDS service by click on this link. [2]
Links
[1] https://ui.adsabs.harvard.edu/?#abs/2013A%26A...552A..64S
[2] http://vizier.u-strasbg.fr/viz-bin/VizieR-3?-source=J/A%2bA/552/A64/table4