Depixel gives you the classic look of Minecraft in double the resolution. The vanilla textures come in a 16x16 resolution, but Depixel takes it and scales it up to a 32x32 resolution, making the game textures much more detailed and depthful. The pack completely overhauls your game. And it does so at a level where the textures stay recognizable. Even people who are using this pack for the first time will have no trouble identifying blocks. By subscribing to the creator's Patreon, you can gain further access to a lot of extended add-ons that can further enhance your game.
Download links for this pack are given below.
How to install
1) Download the texture
2) Put in .minecraft/resourcepacks folder