Sorry to take the wind out of the sails of the venturi enthusiasts, but at typical Jet Transport aircraft speeds, the venturi would "choke" with supersonic flow.
OutOfRunWay, the last flat plate airspeed indicator that I saw was on a Gipsy Moth (DH60), even it's successor, the Tiger Moth (DH82) had Pitot tubes.
The AoA indicator is the only suggestion that bears some merit.
Regards,
Old Smokey