Not really got any specific recommendations but pretty much any PMR446 model should do the job, useful range maybe a mile or two but you’ll be line of sight anyway! The Motorola ones with the “hoop” moulding on the end of the case are quite good for clipping securely onto harnesses / rucksack straps etc.
Definitely worth having CTCSS/subchannels/”privacy codes” [1] which help cut out crosstalk from any other nearby users on the same frequency as you.
Voice-activated TX (hands free) is the other common “premium” feature although it often doesn’t work that well.
[1] or any other marketing buzzword for exactly the same feature