That's not too difficult to research which projects are still running in this bear market, there are actually many old projects but new projects are full of risks. Indeed, I agree that when the market is bullish, some altcoins can find other new ATH, especially well known Altcoin that can last a long time too. Long term hold are better but you are right, as an investor better find projects carefully, many altcoin will not pump when market recovers.