Best small carseat?

GTO šŸ‡²šŸ‡½ ā€¢ Mother to the best son in the world ā™„ļø Rest Easy āŒāŒāŒ
Here soon my son will be growing out of his infant car seat. We are trying to find one that is 3 in 1 and on the smaller side. But still safe (of course) . We have a chicco infant seat right now and it is so huge in our car that the passengers knees will hit the dash. We have a 07 Lexus is250 (for reference).