First, if you are sure, apply for a patent first and get authorization. If it is confirmed after retrieval, it is recommended to apply for an invention patent.
Second, after the patent is granted, collect infringement information and wait for the opportunity (market situation, and whether there is infringement by large companies).
Third, when the time is ripe, use your patent right to attack the infringer for profit, or transfer the patent right without attacking.
One of the above prerequisites: your technology can really stand the examination of patent lawyers, patent re-examination boards and courts; The second premise: the market for products is indeed considerable; Premise 3: You have money and time.