I recently sold my Tamron 28-75mm and went back to compact primes.
I replaced it with another Zeiss/Sony FE 55mm f1.8 (I previously owned one a few years ago), and partnered it with a Voigtlander FE 21mm f3.5 as a two prime travel combo.
IMO, 21mm and 55mm is a better combo, 24mm/28mm is just not wide enough so most people in a similar situation as you would need a wider lens to go with either of the two zoom lenses you own.
The Tamron shows cut bokeh balls at the edges and corners between 40-75mm, but aside from that I was very happy with it.
The Sony is a good lens as well, but I gave up 77mm filter thread lenses with my DSLR's, and constant f4 aperture Zoom lenses no longer appeal to me.