Well, in short of you mean are 'shitcoins'.
If so, you can also find them here, in the altcoin section ->
Announcements (Altcoins).
You can find in that section those threads that created around 2017 - 2018, most of them already lost more than 80-90% since their ICO.
And also some of them already gone, not active anymore on their projects.
As i mentioned, sometimes the coins do gain.
I once invested in Dragon oil (years ago), they raise at around a £1 but dropped back to £0.20p, bought, held for 5 years and they were worth £6+. I have also had colossal fails and people / newbies shouldn't expect to make a profit.
Ultimately if I had £100, £50 BTC, £45 ETH, £3 top 20 and then the £2 on 'dog' coins.