Any CFW will do as they all do the same job. Its a matter of preference really. SX OS if you want to only use .XCI files, EmuNAND, HDD support. ReiNX if you just a CFW for backup launching and homebrew. Atmosphere if you want continual support for your CFW and eventual EmuNAND support (and a few miscellaneous features like rebooting any payload from CFW or protection of AutoRCM during system updates).
For installing .NSP files, OG Tinfoil is still my go to. Goldleaf just sounds too buggy in comparison plus it has a lot of useful but features that can be regulated to other homebrew applications.