For me two Nauts that have advantage in Sorona are: Sentry and Gnaw
Sentry because he can put the Teleport Beacon in the mid so you can see if the enemy team are hiding (You avoid a nuke
Gnaw can camp with the weedlings, farm the top lane and feed the bottom lane to the worm. I played against a Gnaw who did this and that was a headache.
Maybe also Derpl because of the traps... if someone get caught in the mid, BOOM