I'm looking for a good white label reporting solution that I can embed in my web app. I'm thinking back to the days of Crystal Reports or SSRS where you'd have a server running and a nice report writing interface. We have a few data backends (including SQL and Spark), and I'm looking for an easy way to write reports that get surfaced up to our end users, but with all the niceties like PDF generation, good printing support, templates, etc. I know Tableau and Looker have white label solutions, but they're pretty expensive - any good recommendations for a smaller startup?