For current, active tabletop and online coaches, you can access the Talk LBBL forum for announcements, news, fixtures and details of coaches and divisions:
For the LBB2L online leagues, Goblin Spy contains game data for each division - you can see all fixtures going forwards, tables, and lots of data and statistic on every team:
You can access the archived (OBBLM) Online Blood Bowl League Manager to view historical team and match data. OBBLM does not support the 2020 edition of Blood Bowl: Second Season, so will not be used going forwards.
For discussion on playing Blood Bowl, painting, converting, kit bashing and general chit chat, you can visit the LBBL Facebook group: