Usually economical means poor performance.
Quality effective sound suppressors is going to be a bit expensive.
If you are only going to use it on a .300 BLK or .223 Then take a look at the Griffin Recce7. It suppresses sound quite well on 5.56/.300 BLK but does produce a lot of back pressure on AR-15's as do a lot of suppressors with conventional baffles. It is rated for .300 Win. mag. but I would not personally shoot it on a .300 Mag. without some ear plugs.
https://www.silencershop.com/griffin-armament-recce-7.html
If you are going to be running a can on a .25 calibers (ie 25-06) up to the .300 mags. take a look at the Rugged, Silencerco, Bowers or OSS brand of cans, They are more expensive but just plain work better. The Rugged Surge is stupid quiet on a .300 RUM.
https://www.silencershop.com/silencers/7-62mm-rifle/rugged-suppressors-surge-7-62-2.html
https://www.silencershop.com/silencers/7-62mm-rifle/rugged-radiant-7-62.html
https://www.silencershop.com/osilencerco-omega-7-62.html
https://www.silencershop.com/silencerco-harvester.html
https://www.silencershop.com/bowers-vers-30.html
https://www.silencershop.com/silencers/7-62mm-rifle/oss-hx-qd-7-62mm.html
Just some suggestion for you, I recommend the rifle suppressors above to our customers at the store which is based on testing out various brands and models when presented the opportunity to on site.
It just depends on which types of guns you are going to use them on, caliber, budget, sound suppression expectations, weight requirements,,,,,,,,,,a lot of variables come in to play. I ask customers several questions and then make a suggestion but ultimately tell them to do some reading, watch some videos and then make an educated guess cause unfortunately no one has tested every type, brand and model of can out there to determine which particular one is "The Best".
Hopes this helps get you started on figuring out which one you want.
I tell people all the time........the hard part of buying a can, is trying to figure out which one to get.
Good luck.