I would recommend consulting Prokosh Comparative Germanic Grammar. It’s a very old reference and may not be online, but what my germanic linguistics professor

I would recommend consulting Prokosh Comparative Germanic Grammar. It’s a very old reference and may not be online, but what my germanic linguistics professor used with us Germanic linguistics grad students. He was a world renowned expert on the various futhark versions. https://en.wikipedia.org/wiki/Elmer_H._Antonsen https://en.wikipedia.org/wiki/Elmer_H._Antonsen