Ok as said i will post a calculation on current Aizen's spiritual power
now this isn't unknown for anyone that has watched or made a little researce on Bleach
like DBZ and many other fictional franchices the more spiritual power a Bleach character has the more powerfull he/she is but in Bleach that can go to a hole different especially to someone that knows how to manipulate reiatsu at the most basic to it's finest like Aizen.

their will be 2 calculations proving he's power but the second will be kind of theoretical but still not something to be overlooked and last one explainetation on Aizen's full actual power

but let's start with some explainetion on what exactly this calculation is base off(that most likelly half of you have guess it)

In Chapter 621 of Bleach, Yhwach starts to splash his power onto Seireitei's Shakonmaku shield as a black liquid, later manifesting it as eye ball monsters which "stream" (or more like run in large hordes) into this torrent and enter the Seireitei through a hole left in the Shakonmaku by Gremmy's meteor. In Chapter 622&623, Aizen attempts to "shoot down the royal palace here", however fails when Mayuri increases his chair's restraint. After Aizen's reiatsu is restrained, we see that the entirety of Yhwach's torrent has disappeared, evidently vaporized, and is no longer beaming down from the sky.

Part 1
This part clearly isn't theoretical, as it is based on the vaporization of Yhwach's beam, the only part of the feat that we actually see brought to fruition.

From the calc on the soul palace

City Size(High end): 44801.42 Meters

(Greater?) Soul King Palace (High end): 59787.23 Meters

Royal Palace (Or just Soul King Palace?): 177407.08 Meters,

and the distance between soul palace and seirete that has being calculated and ended by bringing does number

Distance /speed = time

26.210 (km)/100 (km/h)= 0.26210= 15.726 minuets

And 574 km/h is 5.74 times faster= 2.73 minuets

Now those effect the result mathematically as follows:

Low end ratio:

20/15.726= 1.27

Since we are using it for ke in speed, it needs to be squared so:

1.27^2=1.617

High end ratio from their would be 5.74^2 higher the low end so:

Low end:

628 petatons *1.617= 1.015 exatons

High end :

1.015 exatons *5.74^2= 33.44 exatons,

the beam is 975.64 meters in diameter and 5968589760 meters long

A cylinder of these dimensions has a volume of 4.46×1015 cubic meters or 4.46 × 1021 cubic centimeters

The heat of water vaporization is 2260 Joules per gram

www.regentsearth.com/Illustrated%20ESRT/Page%201%20%28Prop%20of%20H2O%20&%20Sp.%20Heat%29/Properties%20of%20water.htm

www.kentchemistry.com/links/Energy/HeatVaporization.htm

www.avalanche-center.org/Education/glossary/heat-of-vaporization.php

One gram of water, is the mass of one cubic centimeter of water

4.46*10^21 * 2260 = 1.00796e+25 Joules or 2.409 Petatons

ladies and gentlemen this is Small Continent level.

Part 2
This is based on an assumptive timeframe suggested by calc group member Illuminati478. In this timeframe, Aizen would shoot down Soul King's Palace to the ground. This calc is based on KE.

1 hour = 3600 seconds

Distance = 5968589760 meters

Velocity = 1657941.6 m/s

From this calc, the main palace building where the Soul King resides has a total volume of 8.91 × 1018 cubic centimeters.

Density of concrete: 2.4 grams per cubic centimeter

8.91 × 1018*2.4 = 2.1384e+19

To account for the hollowness of the building, I will multiply by 0.15.

2.1384e+19*0.15=3.2076e+18 grams

Mass of (Greater) Soul King Palace: 3.2076e+15 Kilograms

4.4084779e+27 Joules

That is 1.054 Exatons or Multi Continent level.

Including the mass of the city discs would yield a higher result.

Now on the explainetion about how strong current Aizen is by part 1 we can all agreed he has a feat putting him on small contiment lvls the part 2 as said is kind of theoretical/not 100% sure but it's possible

but fun thing tho still that wasn't him at full power showcased because of the chair restraining he's reiatsu we never got the chance to see he's full extend of power
basically that wasn't more than half of Aizen's power it could very easilly be just 20 to 30% of he's power only
based on this scan
mangafox.me/manga/bleach/v69/c623/10.html
well Aizen clearly wasn't lying their he has no reason to lie
so my point is proven

so if 30 to 20% of he's power is capable to lay waste on small contiment scales
then how much would the full extend be
putative.typepad.com/putative/2013/10/africa-is-much-much-bigger-than-the-moon.html
as you read up their a large contiment>the moon
so even if i would to use just the part 1 only in this calc
Aizen would still rank abone moon lvl easilly if not on small planet lvls
with the part 2 we could even suggest that Aizen is easilly abone just planet lvl at fullpower
and that even proves another fact
even without the Hogyoku Aizen's power slowly grows without any known limit to were it will stop growing currently he's easilly stronger than he's counterpart that fought Ichigo for a last time back then.

so to end this if someone don't want read all this up their here the answer
current Aizen= (low to mid) small planet lvl to(high end) planet lvls and above that