Still old school, but ADSB compliant.
Trig Avionics
https://www.trig-avionics.com/
TY91 Radio
TT22 Transponder/ADSB out
TN72 GPS Position source
PM 1200 Intercom
Statux ADSB in to Ipad FltPlan Go EFB app(its free)
https://flttrack.fltplan.com/FltPlan...iPad_Info.html