What difference does it make what country are you located? Except you use some crypto debit card.
Personally, I've just started to use FTX. Unfortunately, exactly a day before this huge pullback, but the site still looks okay, no wonder why their token skyrocket.
It is more likely for trading, not investing, here is a page where they list the exchanges, most of them have wallets, too. I keep crypto there, but never a significant amount. Anything can happen.
https://cryptototem.com/top-crypto-exchanges/
What personally i dont recommend, as i have very negative experiences (disappeared funds, stupid, insanely expensive exchanges etc.): Xapo, Exodus, Monolith
And forget the ETH20 tokens, just nuts the exchange, transfer costs, even banks are cheaper...