I'm looking for Shader, mods, packs and more for Minecraft 1.16 [Bedrock] Android

Hey guys, I have a question I'd like your help with. I've decided to reinstall Minecraft to play it again, but this time with mods, shaders, packs, etc. The thing is, I have version 1.16 and I don't know where to find mods like Security Craft, Chisel, etc. My question is: do you know where I can get all this for my version of Minecraft? I know it's a bit old, but I don't have a very good phone. Although I've heard that version 1.17 would be better because it has more mods and more variety, could someone please help me? 🥺 I'd really appreciate it in advance! 😁