Until the technology is developed to a stage that it is likely to draw the attention of an established player in the market, the best strategy might be to get the product on the market and start bringing in revenue. Competitors will see your product on the market and very possibly express an interest in licensing and/or purchasing the rights. If it is too expensive to get the product on the market, the next best strategy is to develop a prototype, and take that around to companies that might be interested in manufacturing or buying the product. Either way, the goal is to interest an established player in the market, and then put them in touch with your patent attorney to hammer out a license.
There are some very good books on licensing of patents and technologies, including:
Patent Licensing: Strategy Negotiation Forms (PLI Press’s Intellectual Property Law Library) (PLI Press’ Intellectual Property Law Library) by Mark S. Holmes. Also, Technology Patent Licensing: An International Reference on 21st Century Patent Licensing, Patent Pools and Patent Platforms by Larry Goldstein, Brian Kearsey. Although less comprehensive, valuable guidance is given in the Green Fields Patenting book
No. Although there may be exceptions, every patent marketing company that investigated by Fish IP Law does a horrible job of both securing a patent and marketing the technology. Several patent marketing companies have been investigated for fraud by federal or state governments.