I think it's very hard to make anything help. Here's a shortlist of things that should be fixed to avoid it horribly hurting innocent people, but I doubt it's enough - there seems likely to be more things in there. The original purpose of the law seems to be "Give the 'intellectual property' industries a blunt instrument to attack perceived violators", so making it less blunt probably violate the original purpose anyway.

Stop removing DNS entries; that's attempting to censor things that aren't in the US for non-US citizens.

Require a full court proceeding to stop advertisements and payment processing in the US - ie, no "court order", it has to be a full lawsuit with the ability to defend.

Require the removal of access to only affect a specific, listed set of companies.

Require the company requesting the blocking to pay reasonable costs of blocking.

Remove the making of copyright infringement into a felony; each of these things can easily happen by mistake.

You could try saying "nothing". Hollywood is actually doing quite alright, piracy or not.

Alternatively, you could suggest Ron Wyden's OPEN bill. OPEN nixes the the DNS filtering, but keeps some of the follow-the-money measures in SOPA. More importantly, it also requires a full court hearing before any action can be taken.