if I focus on 3 coins, then I'll focus on

1. Bitcoin. Almost all developments in cryptocurrency stem from bitcoin development, so bitcoin will be the starting point before the price rises, or falls.

2. Ethereum. This coin also has a presentation and rate of increase in price that is almost in line with bitcoin. although currently, the development is not as fast as bitcoin, the price is sure to be very high in the future

3. BNB. I feel that the development of this coin is the same as in ethereum in the past, it's just that I think its level is still below ethereum. however, I chose it anyway because of its excellent development over the years.