Craft and Wagtail are the two I've heard of as WordPress replacements. In our sector (nonprofits) Drupal has too much of an (mostly undeserved, now) reputation as being very hard to use. I found Craft a bit too convoluted (as I mention in another comment, perhaps just due to unfamiliarity). Interested in Wagtail but that would mean a switch from PHP to Python. Not a deal-breaker but a bit of a hump to get over. Wagtail also used to be a bit too beholden to Torchbox (a UK agency) for my tastes - I think they started the project - but looks like that's shifted a bit in terms of the core team.