Looking for a SLOW burn, excellent-plot Fantasy Romance!

I'm wondering if anyone has a recommendation for a slow burn FR? I find a lot of FR today gets super smutty super fast, and I just cant get into it. I like adult themes, I just prefer a slow build up to the romantic interest that develops throughout the whole book.

Books I can think of that had this:

• Graceling/Fire by Kirstin Cashore
• Poison Study by Maria Snyder
• Howls Moving Castle
• One Dark Window by Rachel Gillig
• Nettle and Bone
• A Discovery of Witches by Deborah Harkness
• Kushiel's Dart

Fantasy Romance books I just can't get into:

• SJM books
• Rebecca Yarrows
• Daughter of No Worlds