Burgum, Hutchinson, Christie, Vivek and DeSantis should all drop out in my opinion.
It's pretty clear at this point that only Nikki Haley has something of a potential to consolidate the anti-Trump vote and big donors. But she worked for Trump in his administration, so nah.
Not sure how that tracks. DeSantis sucks imo but Haley has gotten the most positive press coverage out of anyone running - and for months now - and she still can't even topple DeSantis. She's had everything go "right" for her up to this point and she still can't even beat him for 2nd.