I am a native English speaker (my accent is Scottish, but it is almost neutral; if you are are not familiar with UK accents then you probably won't notice the difference!) and I would be happy to help someone with English conversation in return for a chance to practice my Arabic with a native speaker. I studied in Jordan last year, and spent a lot of time with Syrians and Palestinians, so my preferred dialect is Levantine/Shami.
I would also welcome language exchange with Persian speakers (I study Farsi and I am very interested in Persian literature), and also with speakers of Kurdish Sorani or Kurdish Kermanci. I recently started studying the Kurdish language and I am very much enjoying both these dialects. Unfortunately I don't think I'm ready for conversation practice in Gaeilge or Welsh, but soon I hope. I did speak Welsh when I was very young, and I am determined to get it back!
أنا ابن اللغة الإنجليزية و لهجتي اسكتلندية بس هي لهجة خفيفة من جنوب شرق البلاد... أخف من لهجة شمال اكتلندا, مثلا
درستُ السنة الماضية بالأردن و كنت أتحدث مع كثر من السوريين و الفلسطينسيين إلي قابلتهم هونيك, لذا بفضل أن أحكي بالعامية الشامية
:)