The strategy is not particularly complicated. I mostly found the shares themselves when researching long-term investments.
My criteria are that they could generally be held for the long term (long-term upward trend) if my short-term strategy does not work out. The entry point should preferably be after a previous short or medium-term correction in order to have more upside potential.
Then, as in the chart above, a relatively stable pattern should emerge in a trend channel and the volatility in this channel should be sufficiently high so that the possible profit per "swing" justifies the effort even with these small sums.
And last but not least, the swings (tops and downs) should be as close together in time as possible. This is because the more cycles per time, the more return is theoretically possible.
After taking profits at the top, you can theoretically go short on the share to increase the effectiveness.