a couple of real good tuners out there, problem is a lot of them don't have websites, they all can be found on Facebook , Jay Greene, AJ Berge(hemituner performance)
BGE is a decent place ,
http://www.bgperformance.com/hemi-tuning/

OST is bit pricy and honestly those guys are more All out.
https://ostdyno.com/

I think one of the best out there right now.
https://tapped-performance.myshopify.com/

1963 Thunderbolt 496FE 10.80 (still a work in progress)
1968 Mustang slow a$$ 428 FE
1971 Boss 351 Mustang 11.20@115mph
1993 Lightning 10.61 @ 129mph 408Ci A3 headed NA
1996 Viper GTS
2001 Lightning 8.99 @ 155MPH 5.4 Mod Motor
2009 Ram 9.65@144MPH 463CI G3 NA
2010 Challenger 9.91 @ 139MPH 408CI G3ci NA
2019 F150 (local dealer's Lightning package) ..11.90s