Murkman
Pro
The way Migos do that sticcato flow in combination with slowing it down throghout,while mixing in melody,while also inflecting they voices to add emphasis on certain words is Bone Thugs...
However, to add Migos use ad-libs in tandem with their punchlines to make those lines stand out than just flowing nonstop like Twista often does (in triple-time tempos too, double-time was a cakewalk for him on speed), or seamless with legato the way Bones did their thing.
Check out the song I linked above, that was a completely different way of how they used to flow since "Versace".
For the first time, I think they actually differentiated themselves from the Lord double-time flow on there, because of way they each rode the beats separately.
My memory of 3 6 maybe a bit rusty, but I can't IMMEDIATELY recall him flowing like they did on "Cross The Country".