A lot of arranger keyboards today have a set of Drawbars.

What are some good settings for people to try ?

Google is a good friend when it comes to find a lot of info and tips.
Here is a quick LINK. Enjoy.

Popular Drawbar Registrations

(Excerpted from the OriginalHammondLeslieFaq.)
This is, of course, a matter of taste, though some appear to be used more often than others. These were culled from a few sources.
Gospel
88 8000 008
Blues
88 8800 000
88 5324 588
?RodArgent (Argent)
88 0000 000
?BrianAuger
88 8110 000, 2nd Percussion, C3 Vibrato
?TomCoster (Santana)
88 8800 000
?JesseCrawford Setting
80 0800 000 (?TheatreOrgan sound)
ELP (KeithEmerson)
88 8000 000
JoeyDeFrancesco
88 8400 080
83 8000 000, C3 Vibrato
Also see StandardJazzRegistrations
?BookerT Jones
88 8630 000, 2nd Percussion
?GreenOnions
88 8800 000 (1st chorus)
80 8800 008 (2nd chorus)
JonLord
88 8000 000, 2nd Percussion
ProcolHarum
80 0808 000
AWSOP
68 8600 000, 2nd, fast, soft Percussion
JimmySmith
88 8000 000, 3rd Percussion, C3 Vibrato
Also see StandardJazzRegistrations and ErrolGarnerStyle
?SteveWinwood
84 8848 448
88 8888 888
ErrolGarnerStyle
80 0008 888
?EarlGrant
88 8888 888
88 8877 666
LennyDee
80 8080 808
88 8000 808
08 8000 888
00 8875 400
?GrooveHolmes
88 8804 664
EthelSmith
80 8808 008
88 8800 008
?KenGriffin
85 8855 557
?WalterWanderly
00 8800 006

Jerryghr

The cool thing about drawbars is that you can adjust the sound live to get the sound you want out of whatever sound system you are using.