Those all seem to be around 48 inches long, which is 4 inches shorter than any of my Bird cases.
I have this Ritter bag that fits all of my bolt-neck Epi Birds but does not fit the VP. I like this one a lot.
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This is a cheaper version:
https://www.thomannmusic.com/thomann_gigbag1_bass_heavy.htm
I have this bag but I think mine is the heavy duty version:
https://a.co/d/6mzmJPL
This one will work for Thunderbirds since they are the same basic shape an an Explorer. If this is made like my Bird bag, it has good padding.
https://a.co/d/7xiyAbz