I finished Powerless yesterday (Lauren Roberts), and I read Fourth Wing last month and ACOTAR/ACOMAF the other month - all the 3 male antagonists were described as having swirly tattoos

I'm spotting a trend, here! Good job I enjoyed them all though...
Oh and in Powerless the protagonist has silver hair and is called names relating to her hair colour, is referred to as silver tongued at some point, and in Fourth Wing Violet has the silverish hair and her dragon calls her silver one, etc.
The protagonists all seem to be about 18.
I enjoyed these stories but it might be refreshing to read a book about a 30-Something female lead who rides dragons or wields powers because I am feeling old compared to these young heroines

Any recommendations?