what adapter from Nikon to Sony E should i get I see a bunch on b and h and the price range is differnt. Does it matter which on I get?
I would not recommend using an adapter for the Nikon mount version of that lens.
I think better choices would be:
1. See if Sigma can convert it to Sony E mount. I don't think this is possible from a DSLR mount to a mirrorless mount, but it doesn't hurt to ask, and Sigma is generally very responsive to inquiries.
2. See if Sigma will give you trade credit towards the E mount version. Or sell it and get the E mount version.
3. Have it converted to EF mount and use the Sigma MC-11 adapter.
If your reasoning is that you still want to use it on Nikon bodies, there are a few F to E adapters, but mostly these don't work as well as the EF to E adapters, and the MC-11 adapter for Sigma lenses provides a lot of extra functionality beyond what is available from the generic EF to E adapters.
Specifically about the F to E adapters, there are effectively two available. One is sold under three brand names, with slightly different firmware: Fotodiox, Commlite, and Vello. The other is made by Viltrox. The Viltrox is, last I looked, the least expensive option. Each of them has some lenses they work OK with, some they work less OK with, and many they don't work with. You may be able to find compatibility information where one or more of them are known to work with the Sigma 150-600, but, again, and especially if this is the only lens you want to adapt to the A7R4, I don't think an F to E adapter is the best option.