@wwright I would create a Subscription Report and then filter on Subscription Status = Active and Subscription End Date = the date range you are looking for. ie, next month or maybe a range, last month and this month.
are you looking to include product information like price? If so, that's a different report. I can provide an example for that also if that's what you are looking for.
Hopefully the screenshot below, helps if you are interested in Subscription Counts.
