In fact, it can be considered that the altcoin market has already started, only it is launching in batches.
The altcoin market that has started this time is the old coins that have been ignored by the market during this bull market:
$XRP
$XLM
$ADA
$ATOM
$DOT
$POL
$CRV
$AVAX
Although these old coins do not have any flashy new narratives, they have been overlooked for a long time, the washout is thorough, and the liquidity is high with very little release pressure.