Consider a Garmin InReach https://discover.garmin.com/en-US/inreach/personal/
It is essentially a two-way satellite phone, except that it only allows text messages and not live voice conversations. It works everywhere where you have a clear view of the sky (e.g. not in a deep canyon). You don't need to be an area that has cell phone coverage. You can communicate with emergency services and with anyone who has a cell phone number (SMS) and anyone who has an e-mail address. The recipient receives a message shows your exact location from where you sent the message and a URL that allows them to send a response message. You can also get on-demand weather forecasts for your location.
It is quite affordable (compared to a full satellite phone) and very reliable. There is the cost of the device itself and the cost of a subscription. There are different levels of subscription, trading off fixed cost per month versus variable cost per message.
I take it with me on every hike, even simple day hikes.
The problem with old-fashioned PLBs is that it is one-way communication. You can send a message, but you will not be able to tell whether anyone received it, nor will you be able to have a 2-way conversation to explain the emergency. With an InReach you can.
There are two versions. A tiny version that requires a bluetooth paired cell phone to type messages. And a slightly bigger version that is completely standalone. I would STRONGLY recommend the stand-alone version because cell phone batteries last MUCH shorter than the InReach battery. I turn my InReach on only once per day to check for incoming messages (or when I want to send a message); that way the battery lasts as long as a month or more.