A new software defined radio blog called onesdr.com has recently posted a useful article for radio world newbies called "How Not to Break your Software-defined Radio Hardware". The article goes over a few important precautions like avoiding input power which is too high from transmitters and LNAs, avoiding DC input, and avoiding ESD.
They've also uploaded a few other articles that may be useful like "What is a Bias Tee?", "FM Notch Filters – why you need one with most SDRs", "What to look for when buying a Software-Defined Radio (SDR)", "Should I place a Low Noise Amplifier Before or After a Filter?", "The Best Software-Defined Radios (SDRs) for 2020" as well as several more.