The media coverage has been devided in four parts.
High coverage includes high (pay) TV deals and high free TV coverage and IPTV. Only three European leagues fall in this category:
Medium coverage consists of mostly top leagues but also some medium ranked leagues:
Low coverage includes some medium and some lower ranked leagues:
The rest of the leagues has no coverage.
Sources:
*High TV deals https://media.sportbusiness.com/2020/03/basketball-market-report-2020/
The other TV deals were checked individually by visiting each league's homepage. Translate in google chrome helped with the foreign language pages.