I found it helpful to say the Greek alphabet and see if I could write it in greek letters. You can get the names of the greek letters from this sheet.
So I would say to myself “alpha, beta, gamma…” then try and write the names of the greek letters using greek letters.
Jeff Vann has a great list of Bible names which we sounded out then tried to work out the anglicized version of the name.
I have put some of them on a sheet here to help with some suggestions to help.
If you find errors please leave a comment!