I used Plot for an academic paper I wrote recently. It was the only charting library that I found that let me generate the charts I wanted to draw - which in my case was a grouped bar chart with a logarithmic scale. Ie:

https://github.com/josephg/egwalker-paper/blob/master/diagra...

I didn't try echarts though. I might have to give it a go if its good.

I reckon you can get something quite similar with matplotlib without too much trouble, though that strongly depends on how comfortable or familiar you are with it.