21M South Korean looking to relocate

BACKGROUND: I am a South Korean citizen who grew up in four different countries including Canada, the United States, Qatar and the UAE. I currently live in the states and I am a college student.

Currently I can spend about $1M (USD) for immigration purposes. Technically I do have around $2M worth of liquid capital but I do not want to stretch my finances too much.

I plan on either starting a business or living as a full-time trader after graduation. I still have a year to decide, but I do want to see what options I have. While I can probably easily secure a golden visa, there are some restrictions as to where I can move to due to my unique circumstances.

I have a South Korean passport, which means that I am legally required to depart the United States to complete my military service pretty much right after college. And I definitely don't plan on doing that. AFAIK I can get an exemption as long as I can prove that I am a legal permanent resident of a foreign country. But this also means I would have to be able to apply and get a permanent residency card immediately. (So no Portugal, Spain, etc.)

Legal stuff aside, I never really cared about racism (I live in the American South, none of my friends are Asian), and I really don't have any religious preferences either. (By this I mean I would seriously consider living in Qatar or Dubai, but I know it's basically impossible to move there.)

However, I'm only fluent in English and culturally VERY American. I was in Europe last summer, and I felt very uncomfortable in France and Germany, although I LOVED Italy and Switzerland. I think friendliness is an important factor for me in this regard.

Also I want to live in a relatively modern country. If I do decide to leave the States, I think I will definitely miss Amazon, our banking services and the ability to get things done with little bureaucracy.

I know you guys might be wondering why I'm not staying in the states. It's definitely one of my top candidates currently. But I do want to eventually live in Europe and carefully examine each and every option I have before I make such a huge financial investment. Also the US doesn't have the best tax system.

Additionally, I'm about to propose to my Italian girlfriend. We've already talked about getting married, and she explicitly told me she doesn't really care where we move after college. So in theory I could move to Italy with her, but that would also mean that I should start studying Italian.

TLDR: In case I wasn't being clear enough, I am an English speaker (not a US citizen or resident) looking to relocate to a country that offers a quick pathway to citizenship or permanent residence. I have $1M I can afford to spend. I don't plan on studying or working there. I would appreciate any suggestions you might have for me.