This is an excellent semi-rigid case for a small price : https://www.dv247.com/en_GB/GBP/Fame-Soft-Case-Electric-Bass-/art-BAS0008530-000
Or even cheaper, but as good, this semi-rigid gig bag is excellent too : https://www.dv247.com/en_GB/GBP/Fame-Gigbag-Electric-Bass-Modern-Deluxe/art-BAS0009376-000
Semi-rigid protection is, to me, better than a hard case that will amplify shocks when the first will absorb them.