I recently attended reinvent for the 2nd time but I was unimpressed by the quality.
EDIT: the conference could be in person or online.
Hopefully it can assist, I don't have any personal recommendations!
Because, you know Hawaii...
If you can go to in person conferences, do that, for the networking.
Or depending on what kind of compute you have access to at work, just ask if you can have 5k of aws / gpu time to explore what interests you.