High power factor but maximum current at resonance in series RLC circuit
In a series RLC circuit, at resonance, the power factor is unity but
the current is high.

Correct but talking about power factor here might be irrelevant.

But since in high power factor the current drawn is low, then isn't
this a paradox?

Power factor correction circuits use parallel resonance to achieve power factors approaching unity and thus, they (parallel PF correction circuits) minimize the current drawn. Series resonance isn't used in PF correction circuits.