Am I being vague?
Kind of, yeah. I mean, you refer to "a well lit scene," but you also refer to "lighting similar to Default modes in Max viewports." I wouldn't consider Max's default lighting to be "well lit." Still, if that is the look you're going for then note that the default lights aren't based on a static light source. Rather, the default lights in Max move around with the camera, so that the model is always lit no matter what angle you are viewing it from. To replicate that in Blitz, you would parent the lights to the camera.
Unless you want the lighting to change (and even if you do, it'll just require additional tricks) I would recommend lightmaps. Use gile[s] to lightmap your scene.