I like the idea of Esperanto - the nice, logical vocabulary building, and the idea of an International Auxiliary Language. But unfortunately I just find Esperanto so darn ugly. Fortunately there was an official reform project, Ido, that fixes the ugliness - and I’m currently learning it. (Esperanto ugly? Yes, any language that can contain “Kvinstela hotelojn” or that can be written with the form “Vojagxo Gxis Noktofino” has ugly moments. Eww.)
I created an Anki deck for learning the vocabulary (doesn’t do much for the grammar, which you’ll have to look up elsewhere) with 600 items to get started - hopefully I’ve ironed out most of the typos by now too. The deck title is “Learn Ido - Aprender Ido - Ido Linguo”, with the front of the decks in English and Spanish and the back in Ido. Hopefully it’s of interest/help to someone here.