... what are safe airlines.
Like so many things, it all depends ...
Context, what is the purpose behind the request. If it's statistical safety then consider what is published (beware of the internet) and then reconsider the journey to the airport or crossing the road.
How is safety defined:
If to minimise harm etc, again refer to statistics, but don't just use the industry view (e.g. Boeing) as many major accidents have been discarded: aircraft lost without trace, military action, etc.
If safety is considered as an activity, reflecting what an organisation does, then the government / airline view might be satisfactory.
I recall an old study which concluded that airlines were (statistically) safer after suffering one or more major accidents !!!