For those working for a company that does cost of living adjustments, look into getting a virtual mailbox from https://www.anytimemailbox.com/ and "move" to your new address in Seattle, Washington. Its a great tier-1 city which will raise your income by 30%. Washington also has no state income tax. The only downside is the weather, but since you don't actually live there you can avoid that and just get yourself a nice zoom backdrop of a rainy city.

This could actually be a great startup idea - virtual "hacker houses" located in expensive cities that people can use as virtual home bases. We will take 5% of your tier-1 income to handle all your paperwork so you can be free to live where ever you want.