I want to learn classical guitar. Especially improvisation would be nice like here:

It doesn't have to be super technical, but I'd like to be able to play some cool music on the guitar.https://curated.onl/nba-reddit/

I have pretty much no guitar abilities at all (I can play Shape of my Heart by Sting or Blackbirds by the Beatles). But I am a really good pianist - not to brag, but I think I learn guitar quicker than somebody with no musical background whatsoever. https://reversephonelookup.onl/

Can you advise me books or a youtube course for classical https://pcbuilder.onl/pcpartpicker/ guitar? I am not sure if I can afford lessons right now.