Routing and Altitudes via the following priorities 'AVE-F' hold at clearance limit until times up ...make any available IFR approach you want if this is the type of 'emergency' facing aircrew today we have a very bleak outlook indeed! while doing this you can fiddle with the radios and try to re-establish coms...
AVE-F
Route and Altitudes as Assigned... Vectored...Expected...Filed
Whst does every one think all that CRAFT clearance mumbo-jumbo is for anyway?---your health
Lastly, although perhaps not the best idea in commercial operation...if VFR you can remain VFR and follow procedures for NORDO at a chosen airport
I know that SOPS are overriding but most include some variation of the above...