I doubt there is much info out there, apart from using her to boost GLs or going with Maul. She very quickly found a niche when released.
You can put her alongside anyone you want, to boost their defence and give counter attack to. They have to not care about Armorer not being the right faction with them and such. Say... Savage Opress for example. That could boost his ability to take out teams. Just like she can boost a GL, she can boost many others as well.
She also has a pretty good lead for early game if you have mandalorians to use with her, like Sabine, Bo-Katan and Jango. Loads of protection up can be useful.