If I were you I would not borrow loan to buy coin, because it might affect or disappoint you in you plan. Remember the bear market now. but if must buy, go for bitcoin and I preferably you used your personal money to buy it so that even you lose it will not affect you much. I have seen and heard of persons did what you are planning and later broke down in tears. Crypto currency investment has a calculated risk, once you miss out, yours is gone. Therefore, invest what you can lose when it happened.