If you want more of the same type of stuff, you can try my Finnish fingerloop braiding pages. The text is in Finnish, but all the braids with English names are period and there's always a chart, and also a video in most cases.
Silkewerk has lots of patterns from three different manuscripts. They only have written instructions (in modern language), but for most braids those are clear. Note also that there are two-person braids among those instructions - anything with 12 or 16 loops will definitely need a buddy, and braiding with somebody isn't within the scope of this course.
Ingrid Crickmore, The Loopbraider has an extensive collection of tutorials, but not all those braids are suitable for the SCA. I suggest starting from the Historical Accuracy page.
If you want a good book on these and many other medieval braids, Tak V Bowes Departed by Elizabeth Benns & Gina Barrett is a good one and not very expensive. The book was out of print for a long time, but there was a reprint in 2019. Now the book is available through Gina Barrett's webshop. The instructions for most or all of the braids in the book are available online, but not always very clear and usually without charts, while Tak V Bowes has charts for every one of the 40 patterns.