The Myantenna end fed half waves are decent, I have at least one. It?ll be one of the first antennas I put up at our new house, because it?s so easy to install. The Chameleon antennas are generally overpriced, that?s not to say that they?re not good antennas. They?ve good, but you can find the components needed for their antennas on eBay for a lot less.
There?s a dealer on Etsy that sells spool antennas, not too expensive and good quality, I have one. If you have a large budget, you might consider a Buddipole. I?ve operated all over the world using a Buddipole, it?s compact, and effective, but not cheap.
My XYL and I are going to be operating portable at a local county fair in late July, and one of the antennas we plan on using is a Comet CHA-250HD vertical which covers 3.5-57.0 MHz. Again, it?s not cheap, but they work, I have two. They can collapse down to a manageable size, and can be erected in a few minutes.
The end fed antennas can be built inexpensively, I?ve built a couple, and I wanted to use one of my home builts, but they?re in a box somewhere in storage, and at this time I don?t have the time to build another one. I haven?t even had a chance to put up one of my other antennas at the new QTH. My XYL thinks that showers, toilets, etc. are more important. Imagine that!