If you're running a multimillion dollar drug operation and you're too incompetent to set up, or too cheap to pay someone to do in your place what most home-labbers could with a couple hundred bucks of hardware, then you're going to get caught and you probably deserve it.
Realistically xmpp over i2p or tor on a disposable live-booting OS would be the best answer. Shit even a one-time-use pay-as-you-go gas station burner woulda been better in most cases. Failing that, you should at least plant yourself in a corrupt enough country and just pay off the local law-enforcement.
If you can't do opsec and own your own comms, then why the fuck would you break international law like that?