Just adding a few notes on the Stevet1 suggested.
Note that there are three generations of the EF-S 18-135mm F3.5-5.6. The oldest is the original from 2009 (DC autofocus motor), then the STM (stepping motor) introduced in 2012, then the nano USM (Ultrasonic Motor) in 2016. I've never owned one. They look to be the same optically (maybe some coatings changed, but maybe not?0 and IS is advertised as 4 stops on them all. I would recommend the USM version as that's the motor Canon puts into it's better lenses and will delivery quieter, faster autofocus. That version has a used price of about $260. Canon support for the STM version is scheduled to end in 2027. The USM is "undecided", which means it will be beyond 2027, almost certainly. See the USM at https://www.usa.canon.com/support/p/ef-s-18-135mm-f-3-5-5-6-is-usm
Canon, as far as I can tell, no longer markets this lens directly, and but there are "new" "White box" (not your standard Canon box) version in the $300-$350 range. I'm guessing that these lenses were leftover stock and/or grey (aka non-US) versions. BE CAREFUL, as a LOT of those that I took a quick look at are NOT the USM version of the lens. Amazon has a lot of less that super-reputable resellers, so I avoid Amazon personally if you get that lens.
I can personally recommend B&H or Adorama for new and used. B&H has one new for $599 and open box for $499 and used for $330. Adorama has new (same price) and used ranging from $373 to $258. MPB has them used for $260. I recommend MPB for used (they don't sell new, only used) as well. MPB posts a picture of the actual lens that you will get and specific details about items included and not included (you can decide if you want to pay extra for an original Canon box for instance). MPB and Adorama offer 6-month/180 day warranties and B&H is 90 days. I'm guessing they all probably offer the opportunity to buy an Allstate-owned protection plan. If not, and you want one you can purchase it yourself.
28.8-216mm will be the effective field of view on your cropped sensor with this lens. That's an excellent wide range.
