Take it to a tint shop and they can walk you through the options and make sure you are within the legal limits of whatever state you’re in.. I’d recommend the tint that blocks UV
Just went back to look and saw you’re in California.. they won’t be able to legally do the front as dark as the back, but they can do a lighter tint in the front that blocks UV
Yes, I know, my Tint is already done and it is too dark, I agree. I live in small town where in general the police leave old guys with nice vehicles alone, it's the CHP that typically issue fix it tickets for windows being tinted too dark around here, if they see you on the highway.