Mostly the Ripple (XRP) coin, from my observation the market structure shows XRP has potential for long term investment and if investors can take advantage now it might likely  be profitable but it doesn't give full garautee of 100% profit, most especially for those who no nothing about the market  for example when to buy and sell and they end up with loss, i dont actually blame them cause altcoin usually works that way, i will love to mention ethereum cause the coin has potential, don't know about meme coin when talking about the hype cause alot of investors love following the hype so even with the low level of profit investors will still invest, when I checked last the dogecoin still stands as a good memecoin.