1899 ends on a cliffhanger and, to me, is not a good show.

Paper Girls ends on a cliffhanger and is a good(ish) show. the story follows the comics, so you could watch the show and then read the comics to see how it ends. it's not must-see TV, though.

I have not seen Dynasty, but I read an interview with the producer where she says that they could end it without a cliffhanger because they had time to prepare a good ending.