The oldest and longest of these threads is
here. It hasn't been updated regularly recently, but it is useful for newbies to have a look thru, especially as it suggests criteria which should be applied and met before any investment is contemplated.
Not all scams are straightforward to spot and are not all outright thefts by bad actors.
Some have some mining going on which satisfies superficial inspection, but they actually sell far more capacity than that which they have, so-called fractional mining.
These are usually accompanied by an MLM sales structure, where the priority is to get the investors money in (to satisfy the upline commission threshholds) irrespective of the ability of the token mining to provide promised returns, and then use various excuses to reduce payments to fit what money is left over.
Due diligence about any investment is something essential, people should not become dependent on lists compiled by others, they should develop their own critical abilities.
The first question that one should ask oneself is "Why?" when presented with a scheme, mining or other, which promises fantastic ROI.
"Why do they need my money if they can earn 200% (or whatever)? Why not keep it all for themselves?"
