LSD has an analogue called "love drug" that isn't as psychedelic but is visual and tactile and can be safely mixed with MDMA. I say again its safe to mix and less trippy/
The Love Drug is almost always referring to MDA which has been around longer than MDMA in the drug scene. There is also no such thing as LSD-54. There are many analogues of LSD however. I can't think of any that are less psychedelic though I've not tried MIPLA DIPLA EIPLA etc, which I suppose I have heard are milder or at least less potent. I found AL-LAD and ETH-LAD to be just as visual/psychedelic as LSD though a little bit different.