On Crystal Isles u can find fungal wood at lat 65 Lon 75 pls up if helpful

Easy to farm pretty easy to tame lure the 1 u want away then bola it and surebits out of agro range

If the saddle isn’t available to unlock in the engrams portion, you have to select the aberration icon near the top right of the engrams tab. For some reason, mine only selected “The Island” engrams and didn’t show the Ravager saddle and other items exclusive for “Aberration”. Hope this helps, took me forever to figure out why I couldn’t find it!