Many beginners, when faced with purchasing their first communications gear, invariably wind up buying cheap Chicom handhelds because that's what the masses have been getting. They then put them on a shelf thinking they will become proficient with them when the great TEOTWAWKI Zombie Apocalypse (tm) occurs. They are what we would call in the Army a "NO-GO" when it comes to communications. Commo is one of those basic things that you should be using now and regularly so you can become proficient in its use for when you actually need it.
Personal intra-group radios need to be uncomplicated, rugged, and reliable. That eliminates the common Chicom ham radio handhelds. There is no one one-size-fits all solution when it comes to comms, and you have to figure out some specific requirements when it comes to your communications needs. I offer classes that teach this sort of thing, based on my 35 years of working with radio and electronic communications. Here are a few possible solutions.
MURS is a nice suburban/rural license-free service. It has five channels on the VHF-high band with two-watts output power and an option to encrypt. Range is similar to what you would get with a typical 2-meter HT.
Here is the currently gold standard in MURS radios. The Motorola RMM2050 operates on the five VHF-high band license-free MURS channels. Unlike the Chicom HTs everyone claims to be using on MURS, these are pretty simple and straightforward in operation. So simple even your Aunt Marge, herbalist and seamstress extraordinaire whose VCR is still blinking "12:00", can use it. MURS Channel 3 (151.84 MHz.) is the nationwide interoperability channel for survivalist-types. See https://amrron.com/communications-resources/ch3-project/ for more info.
If you're looking for something a little more private than MURS, the Motorola DTR series is what I would buy if I didn't live in the hills and have a ham license with a shack full of commo gear. License-free, 900 MHz. digital frequency hopping spread spectrum. Honest 2 mile range in most terrain, which means you'll be able to stay in touch with your group if they're within an hour's walk.
What do I use at present?
Want to learn how to choose the right communications gear?
Come to one of my classes this year. The current schedule is at https://www.sparks31.com/p/2019-classes.htm. My next class is scheduled for June 1-2, 2019 in Lynchburg, VA. To enroll, please visit https://squareup.com/store/sparks31. I am also available on a limited basis to teach private and group-sponsored classes in the Northeastern and Mid-Atantic US regions. My flat rate for these classes is $2000 for one-day instruction, $3000 for two-days. Subject matter covered includes basic electronic communications, communications monitoring/COMINT/SIGINT, and intelligence preparation. A $1000 deposit is required to schedule, with the balance due no later than 30 days before the start day of class. Payment can be made at https://squareup.com/store/sparks31, and then email me at email@example.com to arrange the date.