I use mini-graph-card, even for daily usage and it works finie for me.
However I think the 2021 lovelace graph card challenger is ApexCharts :
ApexCharts card - A highly customizable graph card - Share your Projects! / Lovelace & Frontend - Home Assistant Community (home-assistant.io)
I’ve not taken time to try it yet, but looks very promising and developper is reactive.
