Same advice I've been giving since I wrapped up the guide a few years back. Red Pocket.
They have competitive prices on multiple plans, they have multiple plan options ranging everywhere from $2.50/month to $40/month - including annual plans and family plans, and they offer most of those plans on all three major networks. Support is okay, better via chat than call-in, and the rare time there have been problems, they've been fixed without much fuss.
$10/month/line will get you "unlimited" talk and text along with 1GB of high speed data on your choice of network. If coverage is a concern with travel, go with their GSMA (AT&T) or CDMA (Verizon) SIM cards given there's no network roaming like Ting did with their T-Mobile coverage. Maybe one on each network for better travel coverage if your home coverage is about equal between your options. You won't get international roaming with them, however.