Based on the video context provided, it seems like the best public lake for catching trophies using swimbaits would depend on the specific location and the type of swimbaits you are using. Different swimbaits excel in different situations and seasons, so it's important to choose the right bait for the conditions you are fishing in.
In the video "My Top 5 Swimbaits Of All Time!" by crazybassfisher, the angler mentions that the Gancraft 178 swimbait is effective during the post-spawn into summer months. This suggests that the lake he fishes locally is productive during this time. However, the specific name of the lake is not mentioned in the video.
In the video "How to Catch Fish YEAR ROUND with Big Swimbaits!" by Milliken Fishing, the angler discusses fishing offshore for brush pile fish or fishing for schooling fish on points during the summer period. He also mentions fishing shallow reservoirs with isolated cover. While he doesn't mention a specific lake, these strategies can be applied to various public lakes that have similar characteristics.
In the video "Fall Swimbait Tricks - Which Swimbaits Catch More Fish?" by TacticalBassin, the angler talks about using swimbaits in rocky areas and skipping them under docks. Again, he doesn't mention a specific lake, but these techniques can be effective in lakes with rocky structures and docks.
In the video "Swimbait Fishing For Bass | Full Seminar | Best Baits, Tricks, and Gear" by TacticalBassin, the angler discusses using glide baits and the S Waver 168 for slow swimming behind docks and targeting smallmouth and largemouth bass. While he doesn't mention a specific lake, these techniques can be applied to lakes with docks and areas where smallmouth and largemouth bass are present.
In the video "How To Catch Big Prespawn Bass On Big Swimbaits!" by crazybassfisher, the angler talks about fishing rocks and targeting pre-spawn bass with bottom baits and trout imitations. Again, he doesn't mention a specific lake, but lakes with rocky areas and stocked trout can be good options.
In the video "BEST Open Water Bass Lure? (Swimbait Fishing Tips) [Line-Thru Lure Tricks with Tournament Pro]" by The Bass University, the angler mentions fishing shallow points in early spring and summer with swimbaits. He doesn't mention a specific lake, but shallow points can be found in many public lakes.
Based on these video contexts, it's difficult to determine the best public lake for catching trophies using swimbaits without more specific information. However, the strategies and techniques discussed in the videos can be applied to various public lakes that have similar characteristics. It's important to research and explore lakes in your area that have the right structure, cover, and fish populations to maximize your chances of catching trophy bass with swimbaits.