Any recommended places to start looking for some good examples of these "Some travel agents"?
With no idea where you are living, I can't recommend anyone. However in general, I have found that going to smaller TAs not affiiliated with any particular company or spruiking particular products, I have obtained better deals.
Others I've spoken to have said that if you want to travel to certain parts of the world, eg Asia, go to a TA where there is a big Asian community and you may find a better deal.
For O/S travel only, I usually research sites and prices on the web before going to my TA, and seeing what they can come up with. Sometimes they've been able to better the price, sometimes I've obtained the same price and other times it's cost me a a couple of dollars more.
I can hear you asking why go to the TA in the first place if I can do all that over the web? The answer is because I like to support local businesses where possible, and I get access to a lot of first hand experience and knowledge, and a better level of customer service from dealing with them than I do when talking with some faceless call centre person who reads from a script or hasn't the know-how to search beyond what is on his/her screen. I do not like the large global TAs who only push their products and quite frankly, whom I've found to be very unreliable on several occasions and I will never deal with them again.
I like the fact that my local TA knows me and I know them and that I can call them up and get them to deal with the airline etc if there are unexpected issues that are likely to impact on our travel plans, like the problems in Thailand last Sept - all ironed out, tickets re-issued etc without me having to worry about it.
It's a personal choice and something you need to research to see if you can find a TA or several TAs that you prefer to deal with, or if in fact you prefer to do everything yourself.