I've been using this venom 1s 4 port charger for about 9 months now and pretty happy with it overall.

https://us.amazon.com/Venom-Micro-Channel-Battery-Charger/dp/B071K7ZNSZ

My only complain is that the little plastic piece in the MCPX ports can come out if you're not careful when removing the batteries so gotta keep an eye on that.

Otherwise it seems to reliably charge to 4.35 on the LiHV setting.

I got a seperate discharger recently as this doesn't discharge.