step forward vs come forward

step forward and come forward both are verbs.

Word	Noun	Adjective	Verb	Adverb
step forward	No	No	Yes	No
come forward	No	No	Yes	No

As verbs, step forward and come forward are synonyms defined as:

Other synonyms of step forward include come out, come to the fore, step to the fore, step up.

step forward (verb)	come forward (verb)
make oneself visible; take action	make oneself visible; take action