I just tried Bamboo and White Grapefruit FO from Nature's Garden. The main scent is a fresh, ripe grapefruit scent with a sweet green undertone. I used it yesterday to make some hair conditioner at 0.5% of the total weight. I'd use it up to 1% in lotions and conditioners, but I probably wouldn't go higher. I have not yet tried it in CP soap, but I plan to. My husband likes it as much as I do -- very much a unisex fragrance.
Another FO to consider is Bitter Orange Orchid from Majestic Mountain Sage (and others). I don't get the bitter nor the orchid parts, but my nose is not very educated. To me, the fragrance is orange spice with an undertone of brewed black tea and wood. I know this sounds like I'm describing "Constant Comment" orange spice tea, but the FO has a deeper, more masculine feel than the actual tea blend. It's heavier than the Bamboo and White Grapefruit. I have made it in CP soap at about 4% ppo. I would say it's more of a guy scent.
A third FO that I have evaluated, but not yet used in anything is Breezes n Sunshine from Nature's Garden. It is more of a "cool, clean" scent but it has a light overtone of lemon. Smelled full-strength right out of the bottle, it has a "Lemon Pledge" furniture polish smell, but as the scent dries down to a more normal intensity, it develops a clean pleasant scent with a hint of sweet lemon. I'm not going to let my OOB first impression count against this one -- I really think it's going to be a good FO in soap, lotion, etc.
I wouldn't use it in soap, but red or green mandarin EO is lovely in lotion, lip balm, etc.