Trek stem alternatives?

Just got my first bike and want to try messing around with different stem lengths. It’s seems rather hard finding some that fit my handlebar. Looking for a 90mn instead of the 100mm that it came with.

I could only find https://www.trekbikes.com/us/en\_US/equipment/cycling-components/bike-stems-accessories/bike-stems/trek-madone-slr-high-fit-stem/p/W569177/?\_gl=1\*1uhfrsg\*\_up\*MQ..\*\_ga\*MTkyMzU2NTIyOC4xNzgyNTQ2NDAz\*\_ga\_67DQ4M84RV\*czE3ODI1NDY0MDMkbzEkZzEkdDE3ODI1NDY0MDckajU2JGwwJGgw

Was hoping for some cheaper alternatives 😅. Any suggestions?