So I am in the process of buying a new car because the insurance company decided to total my 96 Chevy Blazer

and I was thinking about getting maybe a 2000 or so Impala. I've been doing some research before I jump and by anything and so far the impala seems reliable. Ive looked into the Malibu but it sounds like they have a lot more problems.
I've read the common problems like the intake gaskets and brake problems but I would just like to know if there is anything else to look for when considering these cars. also it seems like the 3.8 is more reliable than the 3.4. those that seem to be true. Any other info you can share I'd really appreciate it. Thanks