Looking for an Epic Fantasy that is not YA

I finished reading The Priory of the Orange Tree and I have a hangover from that book, it was soo good!

Can someone please suggest something even better. I have a rather unreasonable checklist if you can please find somehing that tick the boxes:

• Fantasy (magic/dragons/witches etc)

• Rich world building

• Political scheming with dodgy characters

• Well developed characters that you get so attached to but can be killed off anytime in G.R.R. Martin style.

• A side of romance but with so much tension filled build-up that's NOT Cheesy (looking at you ACOTAR and 4th Wing 😑)

• Long and gripping. Don't mind 1000 Pages

• Preferably stand alone. (Up to trilliogy)

• Age-mature (please no YA)

• Preferably female author and preferably female protagonist (or antagonist)