Just a few thoughts to keep in mind...
Nearly all the choices available commercially will make bass.
Power is cheap these days, so you can easily buy a head/cab combination that will provide whatever loudness you need.
The 'quest' for tone will be ongoing. You will not buy the perfect head and cab and live with them for the rest of your playing life. The more you play and grow musically, the more your preferences change. So plan on equipment changes over time.
Make the best choices you can and get started on the path. If you buy good quality equipment and take care of it, you'll be able to sell it for a reasonable price on the used market, and apply the sale price to the next step.
The used market is a valuable resource for musicians. The only benefits in buying new are a warranty and knowing that you (may) have bought into the latest-greatest equipment. Some heads and cabs are not widely available used, so you may have to purchase new.