Here is a list of radio project I’m either evaluating or actively using.
The M17 Project https://m17project.org/ eval got to see the hardware up close at the Near Fest in NH (2021) that past spring looks very promising.
Allstarlink https://www.allstarlink.org/ testing. I currently have a node running on a beagle bone black. which is no longer supported by AllStarLink. they have migrated to pi. As time permits i will be testing a node on Pi or Pi-zero.
iGateMini I’m actively running an iGate-mini. The boxes with great for reciving and passing location data to aprsfi and aprsdirect. Every ham should have one setup adding aprs coverage. very little is needed to getup and going with iGate-mini.