Ask the dealer you got the boat from for a recommendation. They should know best. But make sure what they recommend makes sense. They may give you what they can get and not exactly what you need.
In general the steps to size a trailer are:
Calculate the weight. Bare hull for the 235 is about 4100 lbs. Add to that about 600 lbs for a motor, gas half tank about 300 lbs and gear, maybe another 200 lps, maybe more maybe less. That puts you at about 5200 pounds. Add the trailer weight, varies but figure 1200 pounds as a ballparlk and 10% spare, your looking at a trailer with approximately a 7,000 pound rating.
First of all, do you have or will you have access to a vehicle that that tow capacity?
In terms of what type to get, aluminum frame bunk style, stainless surge disk brakes are recommended if you will dunk in salt or brackish water. For your needs a dual axel trailer will be fine.
The second most important factor is the 'size' You shouldn't size by overall boat length or overall trailer length. You need to get the transom to bow eye measurement for the boat and get a trailer that can carry the weight as well as have a similar length from the winch to the end of the bunks. The manufacturer of the trailer will list that spec (it will be a range that can be adjusted about + or- a foot.
There are many options you can add and they all add up. You decide if you need them. One option is all stainless hardware (bolts, etc, another might be fancy wheels, guides, etc).
Now for the trick part. Trailers were and still may be in short supply. Used ones are also hard to come by and in addition it is often very hard to judge condition especially for steel frames. You may decide on a specific brand but it may not be available in your area and you really want a trailer shop or marina adjust the trailer for your hull. So its not a question of what one you want but maybe what one you can get.
Price?? Hard to say since it is a supply and demand situation but I would think that $5,000 is as good a starting point as any.
Brands? The only advice I have is that some makes as much better made than others. I don't like to bash brands online but do your homework and you will see what ones get high marks and which one's don't.
