How do I ever begin to describe the events of Marvel’s culminating blockbuster Avengers: Endgame without stepping too far into the dark and dangerous territory of the accursed spoilers?
Guardians of the Galaxy Vol 2 is good. It's not so much a sequel but a companion piece so if you liked the first one you'll like this one, and if you thought the first one was lacking something then you may find it in this one.