Countries that do not tax capital gains on US investments?

I'm 45 and want to retire in the next few years when I'm 48. Most of my assets are tied up in retirement accounts and I have about 200K in my brokerage at vanguard/fidelity mostly S&P500. When I FIRE, I will sell my condo and throw the proceeds (~300K) into my taxable account. My plan is to live off the 500K until I can tap into my retirement accounts at 59.5. My question is how my cap gains will be taxed overseas. Since I am single, I will most likely not pay any US tax as long as I stay under the threshold ~64K. Are there any countries that will not tax cap gains or is it inevitable?