Dry hopping with different hops transforms beer into unique brews giving each beer special flavor and aroma profiles.
Typically, hops that are added late in the boil provide more aromatics and flavor with less (but some) bitterness. Adding hops after the wort has cooled during first or second fermentation is a way to enhance the flavor and aroma even more.
This makes for a super strong and special hop characteristic without the additional bitterness.
It can add a significant amount of flavor since the oils are not boiled away during fermentation.
Adding a few different hop varieties can produce an extremely unique flavor and is something worth experimenting with.
Strong-scented beers are not confined to the dry-hopping process but can be a product of adding hops after boiling.
Dry hopping will not change the bitterness of your beer.
The best hops for dry hopping IPAs are going to be ones that provide citrus, herbal, floral, and earthy aromas and flavors.
NEIPAs tend to avoid the earthy, resinous, and dank flavor and aroma of hops. Expect to see a lot of bright and fruity hops.