That would be much better because "don't put all your eggs in one basket"
Since it's a big money you will need multiple exchanges to be able to trade a big amount.

Every exchange has its own limits you can't trade them instantly with a big amount and I think using multiple exchanges can reduce the account risk for being hacked.

Other exchanges can be found here https://www.coingecko.com/en/exchanges
There are many options but I suggest you choose only exchanges which are a well-known exchange on the top 20 from the list above.