I believe that the US should establish a court similar to the Foreign Intelligence Surveillance Court created under the FISA Act. The government must make a case to a judge establishing probable cause, and if approved a warrant can be issued to a 3rd party communications provider to disable encryption on suspected devices such that lawful interception (i.e wiretap) can be executed.
Warrants are subject to renewal every 90 days and access to encrypted communications prior to the date of warrant approval and not provided by the platform specified in the warrant are prohibited (ie, obtaining a warrant to disable and intercept WhatsApp does not mean you can disable and intercept Signal as well).
I believe this balances the interests of individuals, governments and communication providers evenly.