If you like jalapenos--they're not all that hot--go to "Jalapeno early". That looks like a good one because it matures earlier than other jalapenos. The Bulgarian Carrot is also early season, and also rated "hot".
All of the ones I chose were either "hot" or "very hot" or "extremely hot".
Check out the Chilhuacle; I think that's medium.
There'a a search function that you can use to look stuff up. Try, for example, "banana" and "wax". If the search works properly, that should get you some choices for the kinds you like.
You might also do a search for "habanero". I was surprised to learn that not all of them are hot. Some have no heat at all. And they're very pretty and come in quite a range of colors.
But you MUST get a Peter. lol, they're only $3, after all. I got a total of twelve, plus a one-gallon bottle of fertilizer. Was surprised that the shipping will be only $10.