Never put all your eggs in one basket, meaning: minimize risk and do both options. Nowadays is very hard to raise funds on an idea, you need sales. You can try

Never put all your eggs in one basket, meaning: minimize risk and do both options. Nowadays is very hard to raise funds on an idea, you need sales. You can try to bring in the first couple of clients while still doing consulting work. If you manage to keep stable revenue for 6-12 months you have a better negotiation position with VCs.