Is there any equivalent option or process to get results equal, similar or better than Eevee's Bloom? If yes, how could I do it? I have an object with Emission Surface on Material in that case it is representing a sun, and the results I need are exactly or a little better than what Eevee's bloom is giving, but, Eevee's mesh render doesn't look as good as Cycles so I was wondering if there was such a thing. Thanks!
Use the Glare node in compositing, or design your own via a threshold and blurs. Use appropriate alpha encoding and handling and you'll be well on your way without much effort. 99% of the battle is knowledge on the latter aspect of alpha.