NAL-NL1 and NAL-NL2 are non-proprietary standard fitting rationales open to any HA mfg to use. They're geared for speech priority, so you will probably find them sharp and maybe a little harsh on the ears, unless you're used to it. NL2 is probably the successor of NL1.
DSL-Adult v5.0 and DSL-Pediatric are two other standard fitting rationales, obviously the earlier for adult and the later for children.
You just gotta try them out and see which one you like best. They all probably tend to sound sharper than the HA mfg's proprietary fitting rationales.