A French battlecruiser would make a better first carrier than Béarn

What ship would have made a better first French aircraft carrier than Béarn?

A fast French battlecruiser design, preferably converted to oil-fired turbine propulsion, would be the better foundation.

Unrealized French battlecruiser designs offered an alternative to Béarn's roughly 21-knot machinery. A 28-knot battlecruiser hull with oil-fired boilers would provide a much stronger basis for creating wind over the flight deck and keeping station with a fleet. Even Béarn could have improved if conversion had replaced her mixed turbines and triple-expansion engines with all-turbine, oil-fired propulsion. A fast purpose-built hull would still be preferable because it avoids carrying battleship compromises into every aspect of French carrier operations.