To maximize fruit production, get yourself a pollinator but either way you will get fruit. Bees will be picking up pollen and shuttling it around all day from the same tree.
I container grow for now and I have had great success with a 3-5 gallon Jim bacon tree: it flowers like crazy and has both male/female flowers for quite a while during the middle of the day. In that size container, you can just move the tree around to whichever tree you want to have enhanced fruit set. I have found Pinkerton also makes quite a few flowers. Unfortunately I lost my first Jim bacon tree. All that flowering... I guess it set so much fruit even at such a small size and I failed to remove or thin the fruit. Carried 40 avocados for several months before slowly dropping them and tree went into decline for next 2 seasons then died on me. Never grew the same again. Word to the wise. - don't let young trees bear so much energy rich fruit.