I think this should be enough for your needs:

First enable extglob by running: shopt -s extglob and then

for i in !(*-tagged).tif; do 
    magick "$i" <flags> "${i%%.tif}-tagged.jpg"; 
done

This can also be trivially parallelized with GNU parallel:

parallel magick {} <flags> {.}-tagged.jpg ::: !(*-tagged).tif

I think this should be enough for your needs:

First enable extglob by running: shopt -s extglob and then

for i in !(*-tagged).tif; do 
    magick "./$i" <flags> "./${i%%.tif}-tagged.jpg"; 
done

This can also be trivially parallelized with GNU parallel:

parallel magick ./{} <flags> ./{.}-tagged.jpg ::: !(*-tagged).tif

I think this should be enough for your needs:

First enable extglob by running: shopt -s extglob and then

for i in !(*-tagged).tif; do 
    magick $i <flags> ${i%%.tif}-tagged.jpg; 
done

This can also be trivially parallelized with GNU parallel:

parallel magick {} <flags> {.}-tagged.jpg ::: !(*-tagged).tif

I think this should be enough for your needs:

First enable extglob by running: shopt -s extglob and then

for i in !(*-tagged).tif; do 
    magick "$i" <flags> "${i%%.tif}-tagged.jpg"; 
done

This can also be trivially parallelized with GNU parallel:

parallel magick {} <flags> {.}-tagged.jpg ::: !(*-tagged).tif