Decent / affordable VPS with more RAM options?

I tried a Vultr VPS for my Rust game server and it worked fine, but the 8 GB RAM will not be enough, unfortunately. Bursting up to 16 takes the cost of $ 40 / month to more than $ 80, which is outside of my price range.

The thing is, I do not need a bump in all the specifications, just RAM. I can get away with a 3.2 GHz CPU and a relatively small bandwidth and SSD space. Is there any that is not terrible that allows me to add more RAM without having to spend more on additional resources that I do not need? Preferably with central server options in the United States.