I've heard great things about Vega [1], which sits on top of D3. It's a dependency of OpenSearch Dashboards, allowing users to create custom dashboards on log and observability data [2]. The vega library might alleviate some of the concerns others are expressing about the learnability of D3.

[1] https://vega.github.io/vega/docs/ [2] https://opensearch.org/docs/latest/dashboards/visualize/vega...