Sadly, Esperanto is only easy to learn if you already speak a European language, and even then it helps even more if you speak one of the languages Zamenhof, its inventor, spoke. http://jbr.me.uk/ranto/#01 > Zamenhof included in Esperanto every Polish phoneme with a consistently used letter or digraph of its own, leaving out only the ones that are harder to recognise as phonemes: the nasal vowels, “soft” (palatalised…
I think you might exaggerate this a bit. One of the beauties of Esperanto being constructed is that the letters only make one sound and not like 2-4 and there are a bunch of other tricks to keep vocabulary reasonable and grammar logical without a bazillion edge cases. It might be easier for an English speaker to learn than a Chinese speaker, but I guarantee it would be much easier for that Chinese speaker to learn Es…
Assuming you don't know a Slavic language (I don't), take a look Interslavic. I recognize zero words in the example texts. That might make sense to someone who knows one, but it's going to be an uphill battle for me. Honestly I'd rather invest time in something like Russian or Polish because it gives me access to a lot more native speakers, media and literature.