With the Full Grass Pack, you can get grass blocks, podzol, mycelium, crimson nylium, warped nylium, and snow-covered grass with their surface texture on all sides (with the exception of the underside, because it makes no sense there.. ) This is really attractive and realistic-looking, and it may be efficiently used with shaders.
Full Grass Pack
Some creenshot from Minecraft-packs:
Download this pack (Mediafire)
Download this grass pack (Drive)