The blessed Barley bread was the choice of Rasoolullah ﷺ ~ he took it with dates, vinegar, melted fat, with a soup made of gourd & Qadeed, & he praised Thareed & Hais (link for a pdf file below mentions all the Ahadith)
Please don’t waste your time with other grains, reviving the blessed barley bread is the responsibility of all Muslims, don’t wait for tomorrow, start it today & I shall help you for its easiest preparation.
I have an exclusive experience of cooking Barley bread with different varieties, no one else in the entire world has done such an effort with the blessed barley, so you have an opportunity to learn.