Minecraft 1.8.9 Resource Pack and Sound Pack Recommendations
The zip files for all the resource packs mentioned in this article can be found online, for example, on Bilibili and Bing.
8x Resource Pack (The most normal resource pack)
Comes with a square font and block placement sounds. Every block has been modified. If you need to record your screen or something, this one is quite suitable.
Original Name:
Rodrigo's+Pack+(1.8)

But it becomes totally different when paired with the sky overlay pack below.
Chitanda Eru Sky Overlay Pack
Suitable for resource packs with no custom sky or very basic sky textures.
Night

Day

16x Resource Pack (The most ordinary resource pack)
Does not come with a square font or block placement sounds. Only a few specific blocks have been modified.
Original Name:
§fggmen §8[16x]
Showcase 1

Showcase 2

256x Resource Pack (The best-looking resource pack)
Does not come with a square font or block placement sounds. Only a few specific blocks have been modified.
Original Name:
! §a§lEmerald Pack §7§l[256x]
2

1

4 PvP Sound Packs
Hu Tao Soundpack 2.1 (Hu Tao)
Hit Sound Glass (Broken glass sound)
Exhibition Soundpack (Iron clanking sound)
§l§6PVP §l§cSound Resource Kit (More sounds)