Both these Cosmo ones are good. You can compare desings since one may appeal to you more than the other. The first link is a chimney style vent and the second is an under cabinet style vent.

https://www.amazon.com/Cosmo-Wall-Mount-Convertible-Chimney-Style-Permanent/dp/B00LI92FPU?dib=eyJ2IjoiMSJ9.BnFatZp_CyO_AIbLD1ya-qLrH4DS3m1bBKsUDV99sj4x5RkG4qwGOnp4tf4Ab48-3rBVfSgxfq1o19nvsarjp7w2ksDP4n0nILcty00LkQtT5G4rToIxEZ1DN6e7BiDBkcUurZkYp7gt8kNEzFkCKrYH6uj9ruqQMmlkyLR12_V9IlaqI5j6ydF6yFXfPhe-c4f8hi-InZPQhQ-lySYKxo2D21r92WtdBWorklWrblk.yGz7PjQbAI97s2ViwdE3kc25BkXqtddG5Jgc6Od-1FQ&dib_tag=se&keywords=36%E2%80%9D%2Bwall%2Bmounted%2Bvent%2Bfor%2Bover%2Bour%2Bcooktop&qid=1709471685&sr=8-1&th=1&linkCode=ll1&tag=proximitypt08-20&linkId=062577b02422eb453792e757db29417f&language=en_US&ref_=as_li_ss_tl

https://www.amazon.com/Cosmo-COS-5MU36-Under-Cabinet-Stainless/dp/B077BPDF8S?dib=eyJ2IjoiMSJ9.BnFatZp_CyO_AIbLD1ya-qLrH4DS3m1bBKsUDV99sj4x5RkG4qwGOnp4tf4Ab48-3rBVfSgxfq1o19nvsarjp7w2ksDP4n0nILcty00LkQtT5G4rToIxEZ1DN6e7BiDBkcUurZkYp7gt8kNEzFkCKrYH6uj9ruqQMmlkyLR12_V9IlaqI5j6ydF6yFXfPhe-c4f8hi-InZPQhQ-lySYKxo2D21r92WtdBWorklWrblk.yGz7PjQbAI97s2ViwdE3kc25BkXqtddG5Jgc6Od-1FQ&dib_tag=se&keywords=36%E2%80%9D%2Bwall%2Bmounted%2Bvent%2Bfor%2Bover%2Bour%2Bcooktop&qid=1709471831&sr=8-10&th=1&linkCode=ll1&tag=proximitypt08-20&linkId=a09e6e72e7ef22125c4d8653ea8df2fe&language=en_US&ref_=as_li_ss_tl

Is that 900 CFM the rated CFM, or the actual CFM? How did you arrive at the CFM value? How good (at pressure tracking) is your planned MUA system? If 900 is only a guess, then I will be happy to supply a set of references that should be understood before specifying a hood system. Or you can find them by checking recent hood-related threads; I believe there are a few sets recently added.

A local appliance center said 900 cfm’s is not necessary for everyday cooking. Now I’m just trying to find a vent with good ratings.

That local appliance centre is either ill-informed or glazing over the crucial issue of air quality in both your kitchen and your home generally. I would suggest highly that you investigate some of the many informative threads that are listed here in the forums and be sure to perform your own due diligence and not rely on anyone involved in selling appliances. Kaseki and others have invested very generously in their time with efforts to layout some of the basic, and not so basic variables, that any of us need to consider when investing in ventilation.