In the linked paper it mentions a specific strain that i, admittedly, used duck duck go's search ai response to come up with an answer, so you may want to verify:

"To increase Bacteroides uniformis in the gut biome, certain dietary choices can be beneficial. Foods rich in non-digestible carbohydrates, such as legumes (e.g., beans, lentils), are particularly effective as they provide the necessary substrates for Bacteroides uniformis to thrive.

Additionally, a diet rich in fiber, including sources like soybeans, inulins, unrefined wheat, and barley, can stimulate the growth of beneficial gut bacteria, including Bacteroides uniformis.

Consuming fermented foods that contain lactic acid bacteria, such as cultured milk products, can also increase levels of Bacteroides.

Moreover, plant-based proteins like pea proteins have been shown to increase gut-commensal Bifidobacterium and Lactobacillus while decreasing pathogenic Bacteroides fragilis.

Finally, incorporating foods high in polyphenols, such as fruits, vegetables, tea, and cocoa, can also promote the growth of Bacteroides."

Microbes