If you go to their observations page (e.g. https://www.inaturalist.org/observations/bouteloua) you can sort by Faves:
That’s probably the best way currently, because there’s an open bug report related to how faves are sorted on Explore https://forum.inaturalist.org/t/sort-by-faves-also-counts-votes-for-can-the-community-taxon-still-be-improved/5647