Best to try some on for size and fit as pad shape and comfort is crucial and that'll vary from person to person. Go to a decent sized
Evans who usually have a decent range of waist and bib shorts
Castelli, Rapha, Assos, Endura FS pro have their fans. But equally plenty are happy in DHB or the higher numbered
Decathlon for long rides
The pad also wears down with use and washing as you say so if yours are well used, you may just need new
I use Gore and Sportful (women's) but the pad varies even within their ranges