There aren't very many 'Tube videos on the subject of lipo batteries in general and disposal specifically...can't be more than a few thousand. Proceed with caution, you'll read as much (if not more) disinformation than useful information!
I found this very informative when I was searching for knowledge. BUT...I just read through it again to make sure it hadn't become outdated...when it was written the salt water discharge method was still the flavor of the day, and I believe most of us now discount it as useless, so disregard that part!
https://rogershobbycenter.com/lipoguide
I can speak from firsthand knowledge that not storage charging batteries shortens their usable life significantly, no matter how much of a PIA it can be sometimes.
I currently have a Hitec X1 MF, an Onyx 235 and a Venom Pro Duo charger. The Pro Duo is nice because it's basically two completely independent chargers in one, but the Hitec remains my favorite. It's fast, balance charges perfectly and storage charges quickly as well. Storage charging sounds complicated when you're told you have to either charge or discharge a battery to 3.8v to store it, but the charger is smart enough to read the charge level of the battery you just connected and know whether it needs to charge or discharge all by itself and stop at the right level. The Onyx is ok but it has no storage feature.