If it’s something specific like what you mentioned, just search for relevant articles with lists of recommendations. For more general themes you can go to goodreads (or similar), find some reviews you agree with on other books you liked and see what else the reviewers liked. Or do the same with people you know if you have similar tastes. You would think LLMs would be good at recommending books but every time I’ve tried with chatgpt the results were pretty bad but YMMV.

Also picking an ISP that actually has a reliable connection even if everything else about their service sucks, including the price.

Isn’t te/le technically a conjugation of you though? You also have to conjugate the verb but at least the difference is just an ‘s’ that you can aspirate enough that it’s not clear if you’re going for tu or usted.

Greek: formal you is usually used with older people (but not family), teachers when you are a student or higher ups in general. Wherever I’ve worked we used the informal form but I don’t know how common this is. Also retail workers typically use the formal form with customers so I do the same with them but many people do not. It seems to be slowly going away as a feature.

Spanish: I’d use the formal a bit less than in greek but it depends on location. In Spain it seems pretty rare but some central and south American countries use it much more.