2015 Dodge Journey Problem, anybody know?

AJ/FormS said
How were the former tires wearing?
You said multiple alignments,but
said nothing about replacing parts.
Can you supply the current alignment settings including; caster,camber, and SAI, and possibly Thrust Angle?
Here's where I'm going;
If the the engine cradle has shifted or been shifted, the SAI will show it. If the camber was reset in compensation,AND the caster split is considerably greater than .5 degree or split the wrong way, AND one of: the rack or tie-rods are loose,and/or the toe is set to toe-in BAM!.......... instant shimmy.
Yours wouldn't be the first FWD car to exhibit this characteristic.lol. When I was a tech,I had to shift a lot of cradles to equalize the SAI, and I had to elongate a lot of strut mounting holes to get decent caster.

The former tires wore on the outer most edge, then moved to total wear. they wore out fast, had to buy new tires in less than a year.
I was never supplied with the sheet of alignment settings, just always a "You're good to go!" from the mechanic. :/ Never heard of the engine cradle shifting, that might be it. Funny though, last night leaving work it rained pretty good and it seemed to have caused the shimmy to subside almost completely. I guess driving on the wet road?