What are the best font management software tools?

Expensive price to pay for a license you already paid for. Although paying for upgrades on an app is something I'm not against, but this is literally half the price of one that's already highpaid for. Aside from being a standalone Digital Asset Management (DAM) tool focused on fonts, it's highly used purely as plugins for Adobe products (which are similarly also well known for high cost licensing & upgrades) .