Keyword domains of a product/service niche in an uncompetitive field

[dbtbandit67]

"keyword domains of product-service niches in an uncompetitive field that get at least 3,000 exact searches with high adsense PPC"

um yeah, i dont know about you but i'm not going to be able to hand-reg those at will

where do you guys come up with ideas for those types of domains? i know a lot of you get them from droplists and this and that. but i dont scan droplists or buy domains frequently, and when i do their usually hand-regged

maybe some of you have a good idea of where to come up with ideas