Sadly, perpetual repeat and high fragrance is usually genetically contradictory in roses that gain their repeat from china roses, which tends to me most modern roses not descending from rugosas.

Geoff Hamilton will get 3 flushes max per growing year, IF it is pruned immediately after each flush. That's about as good as it gets for short, very fragrant, and recurrent.

Some roses can get around this by perpetually growing and blooming, but they tend to be very massive in size, and they're mostly relying on their ability to grow into blooming stages while simultaneously manufacturing a ton of energy through their ever-expanding foliage canopy and massive root systems.

But most don't want these types anymore, because land is too expensive.