With the airbag disabled according to the manual, you can likely use almost any car seat. The Chicco Keyfit 30 is a reliable rear-facing only infant seat that is more compact than most and tends to be compatible in many vehicles. That would be a reasonable one to try. Just make sure you get a free returns policy wherever you buy, as shipping a car seat back can cost a fortune. That means on Amazon and Walmart, be sure it's Prime and shipped/sold by Amazon.com or Walmart and not a third party seller.
This one is on a great deal right now-
https://amzn.to/3OoSs7Y
If the manual is not clear on any aspect of using a car seat in the front passenger seat, I would suggest to try to locate a local technician for assistance if you have any concerns.