In case you don't already know it, most "creams" can seriously knock back the taste of the fruits/others. So if you need to "up" the fruits/coffee/others in anything you mixed with "creams" - don't forget that without the "creams" they'll likely be much stronger.
Using marshmallow & cream (or meringue & cream, for lighter/less sweet) as a "base", you can add almost any fruit/other and come up with major winners! I call the marshmallow/cream bases "Pillows" and the meringue/cream bases "Clouds" . I usually use 4% Marshmallow; 4% cream/s (sometimes 2 different creams together for 4% - or just one)...but you might wanna use less with the SC cream - and then "whatever percentage" of the fruit/other (depending upon how concentrated it is). I've never needed to add a sweetener.