I think you should do your own research and find out out which pair you think you understand the most and would be comfortable to trade. Generally you'd find a lot of information on the commonly traded pairs like EUR/USD, GBP/USD, USD/JPY, AUD/USD, EUR/GBP, etc since these are very liquid and are supported by strong and stable economies.
Forexstress: I like using S/R levels, trendlines, along with moving averages to catch breakouts and trend reversals. I love using charts to see how traders are moving the markets. I look for short and long term trends using 1 hour, 4 hour, and daily time frames. That's the trading style that I am most comfortable and confident in my trades. Everyone has their own style of trading. You will finds yours eventually. In your learning journey, you will be trying all kinds of different systems. Remember you can use a demo account when you are not sure about something. Forex trading is a very rewarding and prosperous endeavour.
HIGH RISK WARNING: Foreign exchange trading carries a high level of risk that may not be suitable for all investors.
Leverage creates additional risk and loss exposure. Before you decide to trade foreign exchange, carefully consider your investment objectives, experience level, and risk tolerance.
You could lose some or all of your initial investment. Do not invest money that you cannot afford to lose. Educate yourself on the risks associated with foreign exchange trading, and seek advice from an independent financial or tax advisor if you have any questions.
Any data and information is provided 'as is' solely for informational purposes, and is not intended for trading purposes or advice.
Past performance is not indicative of future results.