It is strange for me that man with such sum searching an advice from the unknown members. With such money i don`t see a problem to find a specialist for analyze. I even can`t imagine anybody with such sum searching such information himself. It can be some assistant hired for searching such information or just fake, i don`t know for what purposes.
You are right it's a little bit surprising, but to be honest I have no idea where you could find a specialist of crypto sportbooks to hire. In addition, if you hire one people you will only get one single opinion and experience, so OP is maybe looking for diverse opinions and insights from the community. In addition many people became millionaires in crypto thanks to smart or lucky early investments, scams or hacks, but they don't live like common millionaires because it's not easy at all in most countries to convert millions dollars of cryptos into fiat money. So they use their cryptos to play with them.
I don`t think that it is a problem to hire a specialist that can find several advisers in cryptocurrencies and compare their information. In such way the OP will get combined advice from the several persons and he have a real man that made it. So he has a man with the face but not unknown nicknames like here. And the same time i don`t see any problem with cryptocurrencies convert. If the OP has his money in cryptocurrencies - he need to convert a small part of them to pay a consultant or he can pay him in cryptocurrencies too.