Recommended stories, classics, old favorites...

[red_day_dawning]

Hello. I'm relatively new to the Sentinel fandom. I've read the stories with the most bookmarks and kudos at AO3, and the stories of wonderful Jilly James and incomparable Keira Marcos. I tend to like the kind of stories they create, where guides and sentinels are known, and are equal partners. I'm not fond of slave fics, or stories where guides are seen as lesser.
Can you rec your favorite stories please. Old classics and stories from other sites? Slash, preferably, although some gen stories I've read are wonderful. Crossovers are fine. Perhaps authors that are no longer active?
Thanks in advance.

EDIT: Thank you to all the commenters - you've exceeded my hopes and provided me with lots of good reading!