Need help matching speakers with amplifer

Im looking to do a speaker upgrade anyway. I have 100 watt Marantz 4300 amplifier. Around what speaker wattage should I shoot for. I know there are other factors to consider also that Im not that knowledgeable about yet. I know I want 8ohms, and higher the db the better usually. The Boston Vr-20’s were not sounding that good, and thought maybe they were not matched right for my amplifier. I was hearing too much boomyness that I tried everything to fix, but it wouldn’t go away. I think the speakers may need some fixing, I tried almost everything else.

Benchmark AHB2 is a good amp candidate.

Yamaha makes some great integrateds under $1000.  Sold everywhere.  No doubt that at least one will work with those speakers.

@phays245 You might should have led off with your last post. Your problem, as you describe it now, is that you are unsatisfied with the sound of your current speakers. Given the fact the bass drivers in a ported two-way design are only 7 inches in diameter, there may be no amp on earth that can help you get the sound you seek from that speaker. You might be happier with a sealed acoustic suspension design or an open baffle speaker. If I were in your shoes, I would try to expose myself to different types of speakers, and save up for something truly worthy of your amplifier. Dealers, friends, audio shows could all give you such exposure. As other have said, look for a sensitivity in the upper 80’s or above.
The wattage rating of a speaker simply describes its power handling abilities. Most of the time, at normal listening levels, you are unlikely to exceed 25 Watts; only when you really crank it up does the power handling become an issue, and only then when the power being required by the speaker (at the volume selected) exceeds the amp’s ability to deliver it. If your amplifier doesn’t have the ability to sense that you are trying to over drive it, you can’blow up the amp, or the speakers, or both. I’m not sure if the Marantz has this circuitry or not. It’s a question worth asking. Speakers and motors (actually a speaker is a motor of sorts) are dumb; they will destroy themselves trying to do what you ask of them.