I think you can try selly.gg as an alternative if you are selling digital products. This is mostly used by some members here in the forum and sell in digital goods section.
For a physical product, I think you can sell on purse.io and overstock.com they are both accept bitcoin as payment so you can sell your physical product and accept bitcoin as payment.
OP needs a service which has built-in Escrow to protect him/herself from scammers.
Selly.gg doesn't provide Escrow, in fact no automated digital product selling platform provides Escrow aside from CoinMall, OpenBazaar (to an extent) and Bitify.