Is there a way to add bass so that it can be heard on every device? I am not looking for the best bass on just one device but on every device, even if this means it is not the best bass for a particular device.
With Audacity, you can modify your music files to boost the bass (or to apply a variety of effects). You can adjust the bass with the Equalizer effect or the Bass And Treble effect.
Of course, if you boost the bass in the file it’s going to have more bass wherever it’s played.
And of course, it’s best to modify a copy of your music files.
However, as you know there is a digital upper limit of 0dB. (Your digital-to-analog converter is hard-limited to 0dB as are WAV files and CDs.) And, most commercial releases are already maximized (normalized) so usually you cannot boost the bass (or anything else) without clipping. You can however, boost the bass and then use the Amplify or Normalize effect to bring down the levels to below clipping before you export. In effect, you are turning-down everything except the bass. If you have an external amplifier or amplified speakers you can turn up the analog volume so that the bass actually is louder.
What I would like to get is a distortion that highlights the beats without it to be unpleasant or too strong (at least for an average listener).
… When I learnt about clipping, I realized that that eq may introduce it and that’s not that good.
The distortion you hear when you boost the bass is clipping. If you like a little distortion, that’s fine, it’s YOUR music for YOUR listening pleasure! Guitar players often like distortion, but in that case it’s usually “soft clipping” and it’s only the guitars so the vocals & other instruments remain clean. Tube amplifiers are often preferred by guitar players because of how they sound when overdriven.
Yes, distortion is considered “bad” because the concept of high-fidelity is to faithfully reproduce the sound. In the old says, that would have been the sound of live acoustic instruments. With modern recordings high-fidelity means reproducing what’s heard in the recording/mixing studio. Ideally, there should be enough bass on the recording and your speakers would be capable of reproducing that bass accurately.
People who are into high fidelity (or audiophiles) will use EQ to adjust the playback system for accuracy (mostly correcting for speakers and room acoustics). Then, they may occasionally use EQ to “fix-up” an old or poorly made recording. Although, most “audiophiles” are going to feel guilty if they use EQ . 
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I don’t want to lower the voice. The equalization setting I used had peaks at 250 hz and 1800 hz
I’d say 250 Hz is “mid bass”. It’s not deep bass and it’s getting into he male vocal range. If you listen to an 1800Hz tone, you’d probably perceive/describe it as “high pitched”, although it is (logarithmically) in the mid-range.
…This isn’t necessary because you should EQ by-ear to whatever sounds good to you, but just for fun you can use Generate → Tone → Sine and make a 250Hz or 1800Hz pure tone, or any other frequency you wish just to see what it sounds like. (Note that a pure-constant tone is going to sound a lot louder than music at the same peak level.