I’ve been casually working on my Cantonese because I now live in San Francisco, where I’m very often needing to use Cantonese (old people LOVE to talk to me)
Learning any Chinese language on the internet is mostly sucky, mostly caters to ‘omg! Here’s how you do TONES!!’ to people who can’t do tones
But the YouTube channel ‘5 minutes Cantonese’ is quick and fast enlightening for me to drop in on random things. It’s working.