[@Kronshi][@Veiled Angel][@Akayaofthemoon]Couple of fusion ideas:
 Topaz+Mars= Imperial Topaz, with no real fusion weapon, power could be something either support based, combination of what they both have, or super-enhanced senses and physical ability.

Mars+Maeve= Star Lemon Quartz, maybe Spiked Chakrams here, no clue on powers

Maeve+Reggie= Maggie, Has Reggie's nervous energy and brains, with Maeve cooler head and empathy to help balance it out.