Welcome back to the crypto space and really, a lot has changed, and depending on how long you were away the altcoin market has changed a whole lot where we have just few good projects, a whole lot of scam projects as well as hype projects which have nothing to offer other than pump and dump. ICO era has gone, IEO is still in play but not highly hyped as usual and DeFi hype has gone down already with just few Defi projects still coming up. Also, the altcoin market is friendly now and there you can make your pick, but be careful of some altcoins price, that is, they are really high already and you might want to wait for a while to get in. In addition, considering the type of investor you are, you can make your decisions well, that is, buying and knowing when to sell. And very Importantly, not all altcoins are good for long term holding, most especially new altcoins, and lastly, you can select your desired altcoin from top 20 in coinmarketcap as a start.