Welcome.
I also spent a long time researching and reading about hybrids before finally getting one last year. My former car had similar mileage to yours. It was a '91 Olds with 103,000 miles on it. City mpg only about 18 mpg, but like your car, it was good on the highway, sometimes getting about 40 mpg on long highway trips. I think sometimes it's not a bad thing to keep a dependable older car for a long time if it is capable of getting decent mileage. Unfortunately, most of my driving was short local trips, rather than highway. We still have the old car, but I really like my used hybrid.
There's always lots to learn about hybrids. I was surprised to learn, after buying mine, about things like the effect that cold weather has on hybrid performance, and the effect of using snow tires, or the effect of short trips on warm-up time and mpg. There's always something you might not have considered.
Take the time while you save up the money to do research and take test drives to see which car you like better. Maybe by the time you are ready to buy, there will be a new hybrid model out that was worth waiting for.

If you're not part of the solution, you're part of the precipitate.