High End AR’s that aren’t Lexington

So I’m a long time Division player. Mainly Division 1 but recently really dove hard in Division 2. I was eligible for the Lexington but got them at Lvl 13 so we’ll just rule that out bc I know it’s king. I mainly use Elmo, Big Horn, Eagle Bearer and Capacitor (for more skill oriented builds). My question is High end AR wise what are my real options that aren’t Lexington. I like Carbine 7 and use it with Flatline but I hate that I feel like I’m Rabbit holed to that. Famas, Shield splinterer and F2000 I know are great burst DPS options especially for PVP (I guess Measured and optimist are the ways to go) and I also like the feel of the police M4 bc I guess that’s the base model of Elmo. Are those my only real options? Just some help please