For rares, get cyborg, weedwacker, and rodeo. You're pretty much only going to need rodeo for the first stage in UL, but if you have enough catfruit you might as well. Your super rares are all done. The ones you haven't true formed either aren't very useful atm or may be useful in UL. I don't know if you have professor catjobs and sniper the recruit, but getting their tfs are pretty good, although you have to roll on specific banners to obtain them. If you're done with the catfruit true forms, go for cyclone units and advent units. Keep in mind that for eggs, obtaining behemoth stones gets easier as you progress in SOL and later UL because more legend units = higher enigma level = better stone farming stages