Your best bet is to go to a large RV Show where lots of manufacturers and dealers show off their stuff. Try to find one put on by RVIA or the Georgia RV dealer association, not one put on by just one dealer.
Find the TT you like, that fits your needs and then spend some time in it. try moving around in it, stand in the shower sit on the toilet make sure everything is comfortable. If someone is cooking at the stove how hard is it to get past them. If your stuck inside due to bad weather would it be comfortable for long hours of sitting. Lots of storage.....look for what works for you.
Quality is hit and miss... we've chosen our last two RVs from model lines consider mid-level. The first one held up for over 16 years until we sold it and we've had our current one for 20 years. We use them at least once per month and for a couple of week long trips each year. Neither one had any major quality related problems.