Black Sails is a historical drama about pirates and revolution. It's extremely well-acted and has fascinating characters with great character arcs. There are multiple canon F/F relationships as there are three major/main characters who are queer women. It's set before modern concepts of sexual orientation so it's a bit hard to pin down their sexual orientation in current terms, but there are multiple sexual/romantic relationships between women that are extremely prominent/important.

There is het also (along with a very important gay relationship) but IMO, it's a very good show to watch for F/F relationships that drive the plot. It's also excellent if you like dark/complicated F/F relationships and dark/complicated queer women. (Same goes for the men and straight women.)

It's a dark/serious show, so the relationships don't necessarily end well, and some characters die. I didn't feel that the queer characters were singled out but YMMV. I can give more details on this if you're curious.

Caveat: the first couple episodes are male-gazey in a way that goes away as the show progresses. There is also a rape/revenge storyline in them which I found pretty upsetting. The character who gets raped does not stay a victim and that's the last time someone getting raped is prominent on the show. In general, the show gets better and also more female-centric as it goes along.

It's on Amazon video and Hulu.