For 9x9 in particular, if you’ve played a bit then 81 little lions is a classic
There are other versions linked from the resources page of you like e-pub and that.
You’ll see in there that joseki from 19x19 (if that’s what you mean) are not applicable particularly on 9x9.
I liked Xhu98 and Mark5000 crazy nines videos
And you can find some good stuff on the forums like
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