Need some feedback for purchasing my next lens.

I currently have a Canon 90 D. The only lens that will work with it is a Sigma 150 -600. It's great for my wildlife photography which is my focus, but I still need something else to continue to do other types of photography.

The budget is limited since the camera and lens are relatively new purchases. I want to do some landscape, flowers, and general all-around stuff. With my flowers, I typical lean more to close-ups, and I currently use my iPhone for that.

I am currently looking at trying one from Amazon (free return policy). The Canon EF-S 18-135mm f/3.5-5.6 is a Standard Zoom Lens for Canon Digital SLR Cameras (New, White Box). I know it's not a USM, but I wonder if it might be a stop-gap lens. I'm open to looking at other ones, but recently, this one has popped up.

I typically purchase from B& H. Also, open to refurbishment.

Any insight would be greatly appreciated!


Thanks!

Barb