Lol, I've just been sent a book which includes a gluten free choko cake... (Arrowroot flour and honey in it. Reckon I'm going to give it a go!)
The lemon, almond, coconut cake is a Nagi recipe, lots of butter, so not sure how it would adapt if anyone also needed dairy free - but with all the butter it's delicious!
https://www.recipetineats.com/easy-lemon-coconut-almond-cake/