Super helpful review:

https://www.backcountry.com/explore/two-way-radios-for-backcountry-safety

Software:
https://chirp.danplanet.com/projects/chirp/wiki/Home

Amazing Write up:
https://www.amazon.com/gp/customer-reviews/RNTTCRZQPTJH7/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B08T9BCXVB

Some reviewers were saying that some radios have the same brand and ID but over the years the manufacturers have lowered the wattage output and relicensed with the FCC.

Prospective model: https://www.amazon.com/BaoFeng-Tri-Power-Portable-3800mAh-Earpiece/dp/B07VJ38MTW/ref=sr_1_14?c=ts&keywords=Portable%2BFRS%2BTwo-Way%2BRadios&qid=1681269841&s=electronics&sr=1-14&ts_id=912322&th=1