I went with MAS from RockAuto. Not too expensive. Like $60. Solid and sturdy. Moog has a good reputation from what I can tell also.
After you install them, definitely get an alignment done because they come unadjusted and you will end up with an estimated match size of the stock ones. The difference will be night and day after the alignment is done. Also, the whole reason the tire salesperson wouldn’t sell you tires is because of this in the first place so there’s your answer right there.
If you buy new tires from the place they may possibly give you an alignment discount if you ask. See if there’s any warranty, and make sure you tell them you installed adjustable rear control arms.
As was told to me... after getting new tires, it’s always wise to get an alignment done anyway.