Any altcoin with real idea, product and team will be good for holding, just don't by shitcoins)
Need to be careful, now there are a lot of projects that masquerade as a good idea but are a scam
But in anyway there are a lot of good and promising coins
Which project have good idea are usually not the scam project, but maybe, that idea same other projects in the past. Therefore, that good idea used by other projects to develop and that scam project just repeat the idea from other to earn money.