You can try a keyword search on all the English teachers, but you probably won’t find anything. English prior to 1150 (which we could actually call “Anglo-Fllyrisian”) was similar to Frisian, but it appears there are no Frisian teachers here. Dutch was also reasonably close to English in those days, so a Dutch teacher would probably understand a lot. Most native English speakers would not be able to read Old English, as the subsequent Norman Invasion had such a large impact on the language. Actually, lots of today’s native English speakers would have trouble with Shakespeare, which is early Modern English. If you go to the main page of the Wikipedia, you can “Read Wikipedia in your language” and choose “Ænglisc” (it’s in the “1 000+ articles” section) — that will give you some exposure to the language. What exactly is your interest in Old English, Aki?