My current main, a bass that can be had for about 180$ from new, an
Ibanez Mikro GSRM20 bass from 2010 with basswood body, 28,6" scale, on which I replaced the stock pickups for a pair of P/J EMG Geezer Butler, although I went on for a long time with just the original pickups.
Seriously, it's not only the best entry level bass I ever played, it's the one single bass that has felt most comfortable in my hands to play on, that I ever played, and that include the Jerry Jones Longhorn, I once owned but was stupid enough to sell at some point.
A bass that, when it was still in production costed little over 1000$ from new and was sort of a highend/high quality clone of the semi hollow 30" short scale Danelectro Longhorn.
The Jerry Jones comes in on a close second though regarding playabillity of all the basses I ever laid my hands on.
To get back to my Mikro, admittedly the pickup swap to the EMG Geezers was a huge tone improvement, but the stock pickups were not right out bad, they were in fact quite decent and usable, even if a bit weak and lacking some clarity and definition in my opinion and in comparison.
It's perfectly possible that I just got lucky though with that particular bass (even if I guess countless entries by other people in the
"Official" Mikro Bass Club thread would counter that statement), cause I recently bought another Mikro, a 2017 GSRM20B with mahogany body, and it just didn't seem right to me, neither in the way it felt, played or sounded.
Also the piece of wood they used for the neck seems better on the old one, I know for sure at least it is really stable.
No fret buzz either, even at pretty low action, neither any sharp frets or anything like that.
Simply plays amazing.
So there you have my answer, to sum it up:
Best entry level bass I ever played, and still play, and that I am probably going to play in any foreseeable future, is my black Ibanez Mikro GSRM20 bass from 2010 with a basswood body.
Here's a picture of it, if you want it (after several mainly visual modifications, including my haphazardly failed attempt to drill an extra far neck cavity for an extra pickup, why I had to fill it out with filler mass and paint and varnish it over, which explains some of why the bass looks so beaten up):