The Degen, Kaito, Anjan, and similar models found on eBay have received good reports. They are mostly under $100.
Don't spend more than that for a receiver, especially not the SiTex and NASA receivers. Way too expensive for what they are.
Virtually all modern marine and ham transceivers have general coverage receivers these days, so if you're going to spend more than $100-150 then I'd suggest going for a transceiver, even if you don't plan right now to use the transmit capability. You might later, and could then install it for full transceive operation.
BTW, depending on where you are in the Bahamas there are WX nets on VHF as well as HF/SSB.