I haven't tasted them yet, recommending based on a review, but any of the Lindberg seed set if you can go the price. Benefits a charitable cause, too. Aji Jobito particularly which has been reviewed on THP. Won't find that pepper in any store. Never too early to start planning. Hehe.
edit to add the following:
You may want to think about what the end result is that you want? What to do with all those peppers. Make a hot sauce, pickling peppers for burgers and salads, powders for cooking, etc. etc.
Cholulla style sauce - de Arbol and Pequin peppers or maybe a Habanero to kick it up or ... I made a nice Habanero sauce this year with plain Orange Habs.
Pickled Jalapeno - Biker Billy Jalapeno or Fresno. I pickled Biker Billy Jals that I got from a THP member, they were great!
Powders - Albanian Hot Pepper to me is great pepper for powder, a medium hot with great flavor that you could make into a hot paprika. I ordered Judy's Aci Kirmizi Arnavut powder it is fantastic. Sweet, hot, acidic, and salty all together
Hope this helps
Jim