As mentioned in your other post in the other section... last summer I just replaced the 7" touchscreen Garmin that came with my boat when I bought it in October of 2021 with a Garmin 943xsv. It went belly up on me when I did an update on the software as well as upgrade the mapping on it. I personally am a Garmin fan and have been for sometime. There's a place here locally called Harbor Marine that has a good deal of Garmin, Simrad, Lowrance and other units for sale that I tried at the time and settled on Garmin. I personally think the 9" screen is a great happy medium for the boat, though I know that guys have gotten bigger 10"-12" screens, enclose the small electronics compartment behind the steering wheel with starboard and then flush mount them. I personally didn't want to go that route for a couple different reasons, such as not having a locking door to "secure" the GPS behind it and I feel like it's more exposed to the elements when it's flush mounted. Anyway, I like everything about the 943xsv, it's got traditional/SideVu/ClearVu sonar and everything is built into it without having to run a separate sonar/black box. I'd honestly upgrade the transducer at the same time while you're replacing the MFD as you don't want to have a brand new MFD running on an old transducer, if your transducer is really old. Looking up your old MFD, the owner's manual has the years of 2010-2012 listed on it, which means that technology is at least almost now 12-14 years old. And if you haven't replaced the transducer in that time, it's also likely going to be of the same vintage and quite a bit outdated. I would, and did, definitely replace both, of which I replaced my transducer with a Garmin GT-56UHD that can be found for less than $400. I think the entire process of removing my old electronics and installing the new ones probably took me oh maybe 2 hours at the most? The most time consuming part was running the cable for the transducer in the same location that the old one was installed in, and then waiting on the sealant to cure. But the rest of it was extremely easy to do. I'd post a few more details about what you're looking for such as the style of boating/fishing that you do, the size of screen that you're looking for, if you want it to be touchscreen or button operated, what features you're looking for and probably the most important thing would be your budget.