The best monofilament fishing line
Monofilament is the cheapest and most user-friendly fishing line, and while Momoi isn't the cheapest option, it's among the most reliable.
Monofilament (usually made from nylon) is by far the most popular fishing line on the market. It's the most affordable, and it's generally the easiest to manage, while fluorocarbon and braid require more finesse. Monofilament, or "mono," is arguably the best choice for topwater angling because it floats, and its stretchiness can come in handy for a number of reasons, especially absorbing shock, which is helpful if you set the hook too hard, or snag the bottom.
But, the big problem with mono is that it has the highest memory retention of these three types of line, meaning it retains its curls from being spooled. It's also chemically unstable, which leaves it vulnerable to UV damage, along with any number of things from gasoline, sunscreen, and bug spray (DEET).
If you want to pony up for the good stuff, Momoi is rated among the most popular on the market, and after conferring with captains I regularly fish with, I can confidently recommend it.
I've generally found myself leaning toward more inexpensive monofilaments. If you want to lean toward the budget side, I won't advise reaching for the very bottom of the barrel, but Berkley Trilene XL — for ultralight freshwater and inshore fishing — and Berkley Trilene Big Game — for larger freshwater fish and general saltwater applications— have worked for me. I recommend you take extra care to change out your line at least every year, which can get wasteful.
Pros: Low memory, user-friendly
Cons: Expensive, chemically unstable