It is difficult to suggest an Exchange, because I do not know very well how your trading style is, if it is long term, short term, in my case I usually do medium and long term trading so that I can react to the time market movements. Remember that it is recommended that you learn to understand the market, some speculators give their advice in books, sometimes the Technical Analysis usually fails and that is what there is more information, that is why if you have knowledge of how the market moves you can have a broader criteria.