Spanish is a good candidate because words are pronounced as they are written and derived from latin roots.
Another language I have found easy for English speakers to learn German. It was easy for me to. I found it easier than any other language.
Oh I already know German, since I was born in Germany!
Oh I didnt know that. That's cool. It's my second language. I'm working on Japanese and Russian right now.
I know! Are Russian and Japanese hard?
For me Russian is the easiest compared to Japanese. I already knew some of it because my father speaks some of it. But Japanese is really difficult to learn to write, but speaking it isn't that hard.
Oh woah! I always wanted to learn Russian, do you recommend it to me?