You mean someone who will actively manage a cryptocurrency portfolio?

There have been a few high profile and legitimate attempts from traditional finance. If I remember rightly their performance was mediocre and they did worse than if you just sat, did nothing and waited for a better price yourself.

If they're not from somewhere with many years of track record in normal markets they are almost guaranteed to be either a moron or a scammer. Either way you will lose your money.

If I were you I would forget about it and hold.

There are quite a few traditional investments brokers that have tried to handle some bitcoin weight for other people but have failed no matter how safe their positions were and no matter how good the margins they think they took. Also at this point in time, anyone can be better off just doing the traditional hold and wait and still outperform the pros by just letting their money sit idle. Perhaps on other shady and rather relatively unknown cryptocurrencies one can make a decent bit by actively engaging in trades, but for the ones with the most market value and shares, you don't really need one to do the dirty work for you.

many thanks for the replies guys, i got some better understanding now. Somebody recommended me https://mirrortradinginternational.com/ to invest with and they would give high returns, but seems its not that straightforward.

"Using Bitcoin as its base currency, the company uses advanced digital software and artificial intelligence (AI) to trade on the international Forex markets."

What absolute crap.

If it was that easy they would be trillionaires and would not be attempting to sell this.

https://www.coindesk.com/south-africa-investigating-mirror-trading-forex-club

https://news.bitcoin.com/south-african-bitcoin-investment-company-pushes-back-texas-scam-allegations/

It'll be fine until it is definitely not.

Don't ever trust a bitcoin broker because surely they are not legit. A pro trader knows that trading BTC was very risky and they will not put in line there reputation for this job while they can safely trade on stocks. A service like a copy trading of eToro is the best services that you should find and don't ever let your money leave in your own wallet then trade by other user.

I have little contact with and deal with investment brokers, I only read Bitcoin newspapers or forums, sometimes brokers say great when we do and do it is two different things.

Hello
I do think that no matter how reliable a person is , when it comes to bitcoins and other cryptocurrencies it takes a second to loose all your coins. Not your keys, not your coins man ! Just see the price right now , it's climbing, just encash after a while and buy when the price goes low. You have to invest time there yourself. The whole idea behind these decentralized exchanges is ****to make sure people take their own financial decisions****, it's really risky and I don't think you should do that , you can lend your coins but then again I won't recommend it. There are some wallets giving people some interest and such , search it out and see if you like it but I would suggest you to *" NEVER give your bitcoins to someone"* even though it's a trusted booker.
You can take some free crash courses on the internet also about the trading. At the same time there are trading platforms giving advices and such for free. Just be thorough with the news and give it time to mature.

Why would this be the method of "highest returns"? Remembers that brokers are on the sell-side. Their business model is selling investment products for commissions. It might be the method of lowest returns if you ask me.
Now if you invest using into a hedge fund which trades Bitcoin you might have higher returns if they have a proven track record, but they too take performance and management fees from your funds and profits.

I think is well-worth it in the long run to invest in your education and take responsibility for your positions. Just my 2 cents.  

A big no for any Bitcoin investment broker, rather learn trading or buy at low and sell at high because Bitcoin and crypto market are not share markets and regardless of predictions from the experts market goes the other way around hence it's better to manage our portfolio on our own, there cannot be a proxy for crypto currency ever due to its highly unpredictable and volatile nature.

When you say brokers I guess you means something like forex brokers? Brokers doesn’t come with any less risks, there are still risks in making use of brokers, you’re still going to lose money when making use of brokers if you don’t make the right choice. It’s all about learning the trade, if you learn it the one you’re trading with wouldn’t be much problem or difficulties for you, you will be able to trade and earn.

If you’re looking for the best Brokers to trade with, the best I know of is eToro, it’s a very good broker and it has been around for years now and one thing that makes this platform popular is their copy trading. The next ones that are really good are IG and Swissquote. (These are not financial advises to be followed blindly; always do your own due diligence for your the sake of your hard earned money).