@maukka has done VERY thorough hands on reviews of both. The results of his testing are my ‘source of truth’ for the actual performance of each, before they’re in my own hands.
SunLike: Sunlikelamp.com SunLike10xss SOL Ultra High CRI E27 LED bulb (2700/3200/5000/5600K)
Waveform: Review: Waveform Lighting A19 Centric Home/Daylight E27 bulbs (2700K, 4000K, 5000K)
For home lighting, SunLike’s big advantage is the lack of the infamous blue hump that is present in the Waveform bulbs. The tradeoff is about 10-15% efficiency (lumens per watt), and as you noted, physical size.
One thing of note about Sunlike’s bulbs is that they tend to be above the black body line (so more of a green orange tint vs rosy tint), but only slightly, and this can be more down to preference, though the general consensus seems to be that rosy is more aesthetically pleasing to most.
Also, and this is an advantage to a more boutique type of shop like Sunlikelamp, he’ll do a combination of CCTs (called tint mixing). That will always result in a lower duv (rosier tint) than any one CCT by itself.