2015 Dodge Journey Problem, anybody know?

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.