How can i improve the sound of Iphone 11?


I am using SE846 earphones into Ibasso DX90 and i love the sound. I recently bought TIDAL for streaming at home. 
I tried listened to TIDAL through my iphone 11 into SE846 and obviously, with no DAC in it, it was not as good as when using DX90. 

There are times i cannot carry the DX90 but will have my phone with me.

Is there a dongle i can put between the Iphone and SE846 that will improve the sound to match that of my DX90?
epz
I found a step-down trafo (2:1) improved the SQ of my Meizu phone. A bit bulky to carry around though.
"Have you thought about iPhone 11 > Apple Lightning to USB > AQ Dragonfly?"

This is a good possibility. Getting a  (Apple Lightning to USB) is easy enough, and the Dragonfly isnt big, but i never heard it and wonder if it will sound as good as the DX90.

Or if another mini dac would do better. A quick google search for "best portable dacs" revealed different reviewer opionions. No one agrees which is best - Cobalt, Audiolab M-DAC nano,  Clarus CODA USB DACm,  THX Onyx,  Maktar Spectra X2, etc.
Had a Dragonfly black. Sounded fine, especially when out in the noisy world. Sold it after I got the Questyle QP2r and never did an a/b comparison. Considering getting a cobalt for my desktop, which can serve double duty…
I used a cypher labs 720 dac with my iPhone and it sounded very good. I also used it between my Mac and desktop speakers