For research, i would start here
I would look at this also
Let me just name a few
Early june as the name implys
Duchess, kieffer, orient are great wildlife pears and produce more pears than possible to pick. They have an excessively long ripening period. That means the same thing aslate ripening with duchess D’ Angoulme.
Turnbull or douglas are your uniquely flavored pears that are not buttery, not melting, not anything anyone expects.
Slow growing try
(Shannon pear aka Grand Champion pear).
Huge pears you will like these or other seedlings Napoleon’s army planted pear trees fact or fiction?
If you want a spicy pear harrow sweet has a slight clove taste on certain years and it is just a subtle hint. It mostly tastes like bartlett.
A few asian pears like chojuro taste like butterscotch
buttery, sweet, and juicy pears are rare
Juicy - ayers is an actually juicy pear
Buttery - any pear that starts with beurre in its real name. They tend to be french pears that are very high quality. The trend started with the grower van mons.
Sweet - asian pears tend to be very sweet so drippin honey might be a great place to start.