If you are concerned that your fan is blowing too hard on your plants re-aim your fan so it blows slightly above and around the plants, so it hits the walls/sides of your grow area. It will still circulate air through your plants. When I use a circulating fan I aim it so the bulk of the moving air is just above the top of small plants, mostly between the tops and my light. It still makes them sway, which is important to build stem and branch strength, but it does not beat them like a storm. Later it can be re-directed to blow more through the plants if I feel it is needed. Either way a fan will circulate the air in the grow area causing plants to sway laterally and to move fresh air through them.
If you were asking if you can make your own air root pruning pots by drilling holes in your existing pots, I really can't say how effective it would be. I have never tried that and I don't know anyone who has tried it. I do not know what minimum amount of openings/holes in relation to total pot size might be needed to produce the results desired, or what maximum amount of openings/holes there might be where going beyond it might cause a problem.
If you want to experiment, purchase one air root pruning pot in the same size as the pot or pots you now have or will use in the future and attempt to duplicate the size, number and location of the holes of the air root pruning pot by drilling holes in your pots and then when your grow is finished, and also if/when you re-pot during the grow, compare the root development of each and also of course the above soil plant growth final results of each. If your home made air root pruning pots work as well or nearly as well, save your money and stick with them rather than purchasing more. If not, purchase more air root pruning pots.