Smoke Elements Pack | After Effects by MisterFlashAnimation on CGguy
https://elements.envato.com/smoke-elements-pack-after-effects-F4N3CUX
Free 
Abstract Elements And Transitions | After Effects by FlashFXbox on CGguy
https://elements.envato.com/abstract-elements-and-transitions-after-effects-USKEQX9
Free 
Audio Visualizer, Sound Keys Visualizer, Podcast Visualizer 4K by razaki on CGguy
https://elements.envato.com/audio-visualizer-sound-keys-visualizer-podcast-vis-7YN625W
Free