Need more info, for a 55 gallon plastic barrel you can drill a hole slightly smaller and screw a hose bib directly to the barrel, no leaks if done correctly.
Home depot...
If using a standard hose bib from HD the water will come out slowly
Amazon...
To dispense the water quickly I would get a 1/4 turn ball valve hose bib
I used a bulkhead fitting on my new barrel but my 55 g barrels all were threaded directly to the barrel. The bottom bulkhead fitting had a cap that was removed. This hose bib is hooked into a transfer pump.
For another feed I installed a bulkhead fitting but will be replacing this hose bib for a 1/4 turn, this hose bib runs too slow. One valve feeds the pond and the other is for filling the bucket and adding compost teas or urea.
The hose bib on the bottom that feeds the transfer pump doesn't matter because its just to prime the pump.