This “academic” tubing discussion is to my view, near useless. Riders have different masses and riding styles and frequently different loading of the axles, frames have different geometries AND differing quality of construction.
‘my view is you have to ride and evaluate. Hopefully with an awareness of what you have experienced and from that assumptions of what you want.
that written, the ONLY bike that I might have felt rebounded and provided more than what was delivered was a Teledyne Titan, and that was in a narrow range of effort and cadence. I attributed that to the spring co-efficient of the material. The frame was 74 degrees parallel and a 54 cm top tube. Don’t brake too hard as the wheelbase would shorten 15-20 mm. Was fun, but sold it off for a tidy profit in 1979.