[dmforcier]

Jalapeño (and there are many jalapeño varieties) can be prolific and are fun to grow - to a point. They set fruit quickly, grow good-sized pods, then take forever to ripen to red. Which is why the ones you get in grocery stores are still green -- the commercial growers can't afford to wait (plus a ripe jap is closer to a soft jap). Jalapeño Grande is fun but not prolific.

Also try Scotch Bonnets (warm to medium), Grenada Seasoning (good munching peppers), Poblano, Anaheim, Cubanelle, pretty much whatever they have at the big box stores (which are almost all from Bonnie Plants). I've never been a fan of Cayenne, unless one plans to make flakes or powder.

Try the shotgun approach. Peppers are tough, and will surprise you.