First question in Texas is whether you need to use public schools. School boundaries do NOT match municipal boundaries, and are frequently more important as far as real estate values go. (My quick cheat sheet is to look at the percentage of students getting free lunches at the local schools).
Second question is price point. There has been a big influx of folks from California and other yankee areas, and prices have gone up significantly in the last 5 years or so.
With that out of the way - Lewisville is an OK suburb, with some of the areas nicer than others. It’s sandwiched between Dallas County (controled by Democrats) and the Denton county seat of (surprisingly enough, Denton County) with liberal influences from two University campuses. So don’t expect a conservative mecca. There is rail service from Lewisville to both Denton and Dallas (change of train needed to get to Dallas). Not on the Dallas bus system, and two bus lines on the Denton County system; a car is needed - and a toll tag is needed for the car.
If you go north of Lewisville toward Denton, traffic can back up on the I-35 bridge across the lake, although it has been widened recently. Carrolton (to the south) is about on par with Lewisville; Coppell is a little nicer. Portions of west Plano (west of the tollway) are very high end, some are in the Lewisville school district, some in Plano (which has a better reputation for schools). Up Texas 121-Sam Rayburn tollway is The Colony (generally slightly downmarket) Frisco (revolving around second tier pro sports), north Plano (more liberal), Allen (high school sports and band) and McKinney. Living up 121 means very heavy traffic around the 121 - Dallas North Tollway interchange. You probably don’t want to go too far down 121 toward DFW airport.
Maybe look at Highland Village?
I was going to suggest Highland Village or Highland Lakes, just a couple of miles North of the West end of Lewisville.
Don’t know if the OP is going to work in East or West portion.
Many suggestions here talk about cities North of Dallas, up 75 (bad traffic and many miles away). Others suggested cities near I35W (also many miles away).
I’ve lived in Grapevine since 1986 and was a member at Denton CC in Argyle for over 20 years. In the early years, that 50 mile round trip took about 35 minutes each way. When they were widening 114, it took well over an hour each way.