The Green Lantern books got a shot in the arm in November thanks to the DC: Metal event and the tie-in with Hal Jordan and the Green Lantern Corps #32 where Hal Jordan comes face to face with one of the nightmare versions of Batman, The Dawnbreaker. The issue sold 57,000 copies according to sales tracking website Comichron, which placed the book at the 19th best seller for the month.
Sales on both Green Lantern books have been rather anemic and the last time either series placed in top 50 was in February of this year and the last time either broke the top 20 was back in July of 2016 when Hal Jordan and the Green Lantern Corps Rebirth #1 and the first issue placed 10th and 11th respectively. In terms of sales numbers the last time either book exceeded over 50,000 issues in sales was in September of last year when Green Lanterns #6 sold a bit over 58,000 copies. This is a nice sales spike for the book which may have created some return readers to the book considering that issue 33 sold several thousand copies higher than the number it has been trending at.