Safe new army to take up?

[Plasmablasts]

I think the suggestion to build a Kill-Team is sound: it might be the spring-board to a new army; if not, you’ve still got a Kill-Team.

 

If having relatively new kits is a requirement, then your options seem to be:

 

Scions

Adeptus Mechanicus

Custodes

Genestealer Cultists

Imperial Knights

Thousand Sons

Death Guard

Harlequins

 

Of course, you could wait for the Sororitas...