Alternatives to a navalized MiG-19

What alternatives could replace the navalized MiG-19 in the Red Fleet alternate-history carrier air group?

Yakovlev alternatives are considered, but the MiG-19 best fits the scenario's required date and need for a mature aircraft that can tolerate maritime operation.

The Red Fleet scenario needs an aircraft mature enough to undergo substantial redesign for carrier service by the early 1960s. Tolerance of sea spray is a basic requirement, and time in service matters because conversion work must build on a sufficiently understood airframe. The MiG-19 has several years of operational experience by the required date. The Yak-28 falls outside the scenario's proposed schedule, while the much older Yak-23 offers another possible starting point. Sukhoi designs are also considered a poor fit for the timing and available carrier. These constraints make the MiG-19 the preferred option within the alternate timeline.