I do not know if it worth mentioning or not, but let me say it: I still hold DOGE.
There is no specific reason but I think it's a nice coin (regardless its very slow growth), and I think it may be a safe investment (less risky than a big number of others coins)
For me, all the old coins are not in my portfolio because they can no longer make me as profitable as before. Markets are always changing and need to grasp which investment trends are happening to make more profits. I think you should now choose to invest in more Defi projects because these coins can make you more profitable than the 2017 coins.