Here are a list of streaming sites and groups that have made content accessible during the pandemic. There are some world-class performances available here, check them out!
Berlin Philharmonic Orchestra: https://www.digitalconcerthall.com/en/live
click on "Redeem Voucher" to get free access to their archives and streams of live shows
Royal Opera House (London): https://www.youtube.com/user/RoyalOperaHouse
Recordings of shows and excerpts from Opera and Ballet from the last few years
Metropolitan Opera (New York): https://www.metopera.org/
Streaming a new opera from their catalog every night.
LSO Play (London): https://play.lso.co.uk/performances
Sit with the orchestra virtually (on stage) with multiple camera angles so it feels like you're right there