How would you invest in crypto if you had a million in fiat, sterling or dollar

I’ll start by saying I don’t have £1000000.

And I don’t mean, what coins would you buy for that amount, how do you get that money onto an exchange.

But I was trying to move £100 to an exchange recently and my bank in the UK blocked it for my safety. Very nice of them I thought to control what I do with my money. I get scams are real and they use that as their cover.

But if you had big time money and wanted to buy in, how would you do it.

And I don’t mean ETF’s. I’m talking owning what you buy, your keys your coins deal.

This is purely hypothetical and intrigue.