The first two are winnable; Al Green could probably be provoked into doing something stupid enough to lose; the last two would be Texas tuff. SJ has too much well-placed griftin' built up, and Gene is too clean.
OTOH, West fits 33rd like a glove in the way Bobo voters in MI and WI flipped for Trump ie they are open to prosperity gospel; and the 30th is just sexist/dumb/disconnected enough to vote for a successful black man over an ageing ratchet regardless of party.
We know you read this website Congressman ... so if you want to run, let us know ... a blue district Texas flip in 2020 might be very much needed ...