VFX Fire Pack | After Effects by VFXgenerator on CGguy
https://elements.envato.com/vfx-fire-pack-after-effects-7S7SFCA
Free 
VFX Liquid Elements | After Effects by VFXgenerator on CGguy
https://elements.envato.com/vfx-liquid-elements-after-effects-W3LQGC2
Free