Ask HN: Newer alternatives to gantt chart when it comes to software delivery?

I've been working with a fairly young startup team for the last 20 months, and we've finally got to the point where we can refine our software delivery processes.

Something that is obviously really valuable is managing priority and delivery across multiple teams effectively.

I'm finding it less than obvious what a concrete solution for this looks like, and potentially what other highly effective teams do?

At the moment we're using a combination of Jira and a Google Sheet. Jira does most of the heavy lifting, but I'm really looking for something that can provide a high level overview of the initiatives that are in delivery across the teams.

The Google Sheet that currently provides this overview isn't really cutting it anymore as we can't provide a lot of context to the intiatives or how things have changed over time.