Probably want to log an issue with the maintainer for any modules you need ported to drupal 8.
FYI: I"m in progress on the Forena report writer prot to drupal 8 which can be used with the PHP SVGGraph library to create graphs from SQL queries in Drupal 8. It doesn't yet have a UI, so graphing reports need to be manually created as .frx report definition files to make the reports, but if you're desparate, I can help you get started on that.
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Probably want to log an issue with the maintainer for any modules you need ported to drupal 8.
FYI: I"m in progress on the Forena report writer prot to drupal 8 which can be used with the PHP SVGGraph library to create graphs from SQL queries in Drupal 8. It doesn't yet have a UI, so graphing reports need to be manually created as .frx report definition files to make the reports, but if you're desparate, I can help you get started on that.