As stated the callsigns that don't use flight numbers change by season and are not published in advance. Some can be derived with some digging but don't wate your time trying to find a comprehensive list as it's very unlikely to be accurate.
e.g. TCX12YZ might be GLA-PMI this winter and be CWL-ALC for the summer. Given the time lag, libhomeradar and the others are often a season out in their routings. Bewarned, your sanity is at risk if you go down this path !