What plants do you want to fertilize? As described above, fish emulsion is primarily nitrogen and good for green leafies and herbs. Also for heavy feeders in the earlier phase, but as they start blooming and fruiting, you need to increase the other nutrients and cut back of the N to balance them out.
After the initial garden prep, normally I don't use much more than home made compost and AACT for everything including tomatoes. I mulch with grass and weed clippings, leaves, hay and straw, and rely on the solid foodweb.
This year, a technique I'm playing with is building a compost pile in the middle of garden bed. This has meant less finished compost to harvest and spread around due to difficulty in turning, etc.
But this year I'm trying to improve my onion, corn and cucurbit growing skills, so I am experimenting with alfalfa pellets and bran in addition to my usual other stuff.
Last year, I bought fish meal which actually smelled less than fish emulsion, but only because it was on clearance sale. But I'm sure that would attract the critters just as much.
Learning never ends because we can share what we've learned. And in sharing our collective experiences, we gain deeper understanding of what we learned.