there is no strategy to accomplish that - just be already rich as fuck (multi to 8figure millionaire or more already) - if you are , you already are a whale , just not participating in btc , if you aren't you aren't and won't ever be - as far as software and what exchange(s) to use , if you are a whale you don't need any special TA software you just force the market where you decide to and rape profits out of people , and as for exchange i'd go with one native to my country of origin ideally , as you'd have a better chance legally speaking if they decide to run off with a million bucks of your funding - if you're in the U.S Gemini is the safest exchange from a regulatory perspective , followed probably by Coinbase and Bitstamp - most altcoins do not have needed market depth to make any significant regular gains on with "whale" level funding most have total market caps far less than a million $
If he wants to become a whale on Gemini he wouldn't need 10k Bitcoins. A 200 Bitcoin pump on there is a big deal. He could pump and dump the whole Gemini market with 1k Bitcoins. I doubt the biggest whale trading there owns 10k Bitcoins, and I don't think the Winks are allowed to trade on their own exchange due to all the regulations it has to abide by.