Generally the risk to tourists is road traffic accidents, statistically that must remain the biggest threat, and even during Friday's outrage, relatively few tourists were caught up in it. However we cannot really make these judgements on behalf of others, it's up to each individual to make their own decision since typically emotion tends to trump logic here. (Admittedly, personally I feel that not going to Paris is surrendering to evil).

But, in the spirit of creative solutions, what you could do, relatively cheaply, is fly to Paris and then go on to somewhere else. Either flying out to another part of France or Europe, or going to the many great French cities within easy reach of CDG / ORY, such as Reims or Amiens / Orléans and the Loire. Those 2 airports have to be among the safest places to be at the moment, so passing through them isn't risky.