>>281243717
>>281243390
Between the first one(from 7th May 2018) and the second one( from 27th August 2018) there was this group cover from July.
The second(first if we ignore Luffy) tier was Hinata, Deku and Asta.
You can also see how both JJK and Act-Age were treated early on in the serialization(they were series from the February/March batch) in these covers