There was an Esperantist writer, I believe from Hungary, named Tibor Sikelj (exact spelling open to interpretation, and I can't go look him up right now) who wrote a wonderful little story, in Esperanto, called Kolektanto de ĉielarkoj. I believe that it would be worth your time to read it someday.
He also wrote the book "Kumeŭaŭa, filo de la ĝangalo." Also worth your time to read, but no rainbows.
You can go to: http://www.uea.org/info/eo/kio_estas_uea Look for the flag whose language you speak best and then look for book sales. You should also find information for finding the Esperanto group in your own country and maybe give them the money, and even arrange meetings so that you can practice speaking.
Here, also, is the Vikipedio article (en Esperanto) about Sikelj: https://eo.wikipedia.org/wiki/Tibor_Sekelj I don't expect that to be as interesting to you, but he was, by all accounts, a fascinating person.
Multaj bonajn ŝancojn
I'll want to be better in Esperanto before practice speaking, but I'll consider it in (maybe) one month. I already searched sites like this, though, and I found this one: https://pasportaservo.org . It's still only a beta, but it could be great to be able to travel all over the world with Esperanto. Anyway, the books come in handy, thank you.
For the article about Sikelj, I'll try reading it in Esperanto, but I still think that I'll end up reading it in French or in English.