Apologies, it's just that I'm very “meticulous” and I like to leave the scores as “clean” as I can.
One thing I learned about orchestration is that the bass, apart from being essential for setting the harmony and rhythm at times, is what the human ear perceives the least, since our ears are tuned to mid-range frequencies and also reacts immediately to high frequencies.
Therefore, especially when the orchestra becomes denser, it is advisable to reinforce the bass.
The usual practice is to double the double basses with cellos, in unison or an octave. The double bass can play only the strong notes in pizzicato and the cellos can play sustained notes. You can also add the bassoon to your ensemble, whose low range is more comfortable.
The timpani can also reinforce the bass at times.
And then there are other instruments that are not in this style: the tuba, par excellence. And others such as the contrabassoon, bass trombone, etc.