One subscription to a top-tier leech service often covers dozens of different file hosts at once, rather than just one.
While more expensive, Premiumize offers a fair-use point system. It is considered "top" because of its massive API support and VPN integration. kshared premium leech top
One of the most reliable free leech sites supporting K2S. It offers decent speeds (5-10 MB/s) without registration. However, for "top" performance, their VIP tier unlocks unmetered speeds. The Silent Gateway: Deconstructing the KShared Premium Leech