Beerus, but I doubt it will be easy.
He thought he could take Moro, Beerus is not kind of a guy who makes mistakes like that.
He even said he will make it quick, but it could be him overrating his abilities.
Beerus hold his own against other Gods of Destruction;
They admit that without Sidra's barrier, they would be in trouble against Beerus's attack.
Beerus and Quitela defeats every other Gods of Destruction (except Belmod who was pretending to be defeated)
Other GoDs were all defeated;
Only one we don't know for sure was Belmod, but Toppo confirmed that Belmod was weaker than Jiren.
Beerus also one-shotted SSB Vegeta, and then powered-up Zamasu Saga SSB Vegeta as well (not SSBE Vegeta) but it's still very impressive.
It's probably now, UI Goku > Beerus / Quitela > Jiren > Belmod / Other GoDs / Moro > IU Sign Goku > SSBE Vegeta.