Piling on other suggestions, why not Turkish? Admittedly I only ever made it to lower intermediate level (I could read newspapers slowly with occasional look-up

Piling on other suggestions, why not Turkish? Admittedly I only ever made it to lower intermediate level (I could read newspapers slowly with occasional look-up) and now forgot most of it, but I don't think I've ever encountered anything difficult or illogical, except maybe the -ki suffix ("of"/"related to", that seems to require experience or memorization to know how to use correctly). Simple rules, simple writing system, few exceptions and none in pronunciation (that I know of), and piling suffixes sometimes feels like programming, there's suffix for everything and you just add them logically or with simple combination rules: https://trstem.com/en/verb/conjunct/gel/ https://trstem.com/en/verb/conjunct/gel/, you can learn entire conjugation in time it would take you to learn 5 verbs in Spanish ;) Also (like Finnish?) has a political advantage of not being in either of the superpower language families, so every one suffers the ~same amount :)