Most of the nether mobs (like piglins, brute piglins, hoglins, piglins) attack goats that ram them.
And in the 1.17 notes is written that any mob rammed by goats will not retaliate

Summon or spawn a goat (better if a screaming one) /summon minecraft:goat ~ ~ ~ {IsScreamingGoat:true}

Go in the nether

Spawn a hoglin, piglin, piglin brute or zoglin

When the goat will ram one of them, the rammed mob will retaliate.