This Zoom B1ON has served me well but I now have the Zoom B1 Four.
it includes a basic drium machine lid a looper as well as a lot of effects. Zoom say:
”With the Zoom B1on, your bass will never have to take a back seat. 100 powerful bass effects and amp models—5 can be used simultaneously, chained together in any order—allow you to deliver the kind of solid foundation your music deserves. You can even construct CD-quality bass loops, perfectly synchronized to the onboard rhythm machine, and there's a built-in tuner too.”
You can download the User Manual and effect list from https://zoomcorp.com/en/gb/multi-effects/bass-effects/b1on/b1on-support/
Can be powered by 4AA BATTERIES or the usual 9V pedal power supply centre -ve. Can post for £5 more.