Sometimes I like to try to mimic the Hammond B3 Organ/Leslie sound on guitar.
There are many high end Vibrato emulator pedals for guitar and there are a few mid and entry level pedals as well.
Another way to produce this sound is by combining a tremolo and chorus pedal.
Danelectro had a very good, very inexpensive tremelo pedal, the DJ-5 Tuna Melt Tremolo Pedal (around $30 US new).
There are many chorus pedal makers, I’ve been using a Delta Lab Chorus and really like it, it was very inexpensive as well, under $20 US used. (some times inexpensive does not mean cheap:)