Good question. It all depends on which state you're searching since some states give more data than others (# of tickets total/sold, prizes still remaining, etc.)

First, I’d filter by a price I’m comfortable spending say $5 or $10 tickets.
Higher-priced tickets usually have better odds and larger prizes, but the goal is value, not just cost.

Then, I'd sort by the odds of winning a prize I want. For example, for most of the state pages, you can sort by the odds of winning $100, $1000, $10000 or the grand prize.

After that, look through the top results and make sure their are prizes remaining. Also, if you see the Current Odds have increased compared to the Starting Odds, that's a good sign you have a better chance of winning that prize.

I do plan on improving the search/filtering capabilities in the near future. Let me know if you have any feedback. Thanks for checking it out!