Might be better to eliminate a few NOT to buy, then go from there. "Best" based on what? Amount of money able to spend or other factors? Other factors also should include how much you value your time, and the costs of periodic field servicing (including battery life and gasoline expenses).
There are certain brands and models that aren't as bad as others, although most made in China suffer very poor quality control. (Most brands being offered on the commercial market are made in China.)
Other than homebrews and commercial cams made in USA (none of which are among the lower cost options), I'd have a hard time recommending any particular make. Among the lower cost (but made in China) options, some of the best user reviews I've heard recently have been regarding the DLC Covert brand.
One big mistake many people are making is making a decision based on paid advertising, paid endorsements, and/or a "name brand" that might be very reputable for riflescopes (but maybe not so much for trail cams). Failure rates (not working when brand new or not working beyond a few weeks) have been high among most brands (not made in USA). While a "guarantee" can be of value, how do you put a "price" on all that time you're waiting on a warranty replacement and going without what you've already paid for?