Startup Advice Needed!

Built a startup. Coded the whole thing. Unique idea. Then... budget limits hit.

Instead of letting it gather digital dust, I want to sell the codebase! It’s 99% done; it just needs a Stripe/Firebase API plug-in to be fully functional.

Where is the best marketplace to sell a ready-to-launch web project? Drop your best advice below!

Sideprojectors is a good option.