Currently, if you want to buy any altcoin, it is very difficult. You can't choose an option quite easily. Also, the crypto market is currently volatile. In such circumstances if one wants to buy altcoin. So what should be the main focus?
Have it at the back of your mind that you are taking high risk buying altcoin in this time of crypto market where you can't even predict if market will grow further or not, so it's good to go for well developed altcoins and also invest very little amount of money, even if bear comes unexpectedly the Altcoins can be hold for long term without any worries