I only found hmmer, but I don't know if it is faster and more accurate.
Is there any review comparing such tools? A quick google scholar search didn't report anything useful.
I want to search with short DNA sequences (~400), mainly interested for taxonomic imputation so I'll be looking for similar sequences and not distant homologs. I won't try to model genes and the sequence will be unspliced as it is from direct sequencing of a a region of the 16S gene.