Such a great question and topic. I use the Garmin InReach mini. Great response from the community as a whole. I am a solo hiker and have done backcountry hiking in small groups, only one other person. REI has skills classes they teach for compass/Topo maps and other skills you need. I love this solo hiking for me which is an amazing confidence builder but more-so it helps me unwind and enjoy the elements of each hike (peak bagging, birding or wildflower searching). Then of course, there is the community of some of the best people out there! The hiking community is welcoming, attentive and growing at a steady pace. While solo, You aren’t alone out there! I’m doing the Appalachian Peaks in July. I hope to see some fellow hikers on the trail.