Sonos Beam riser feet

Amazon used to have Sonos soundbar stands, not sure if they still do.

Probably easier to go to the local hardware store and look at some of the machined wood products.

I’d like to help...but having difficulty visualizing your TV and stand. Can you post pictures?

On a bigger screen where I can see what I’m suggesting. These with a touch of black spray paint would look good.

https://www.lowes.com/pd/RELIABILT-4-in-x-4-in-Wood-Cedar-Deck-Post-Cap/5015254665

https://www.lowes.com/pd/Artesian-Round-Bun-Foot-Maple-Sofa-Table-Leg-Actual-2-5-in-x-1-5-in/3557012

These are for a Beam gen 2, price is silly.

https://www.amazon.com/Stackable-Speaker-Improved-Clearance-Positioning/dp/B0G5262GJ5/ref=sr_1_4

These are what I have for my Arc.

https://www.amazon.com/dp/B08JCD91D1?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1

This is my TV stand, it sticks out in front of the TV a bit too far for the Arc to sit flat on the cabinet.

When the idiot AI moderator releases it I made a post with links to some inexpensive and too expensive options.

These with a touch of black spray paint.

In the past, as I’ve mentioned when this question came up in the past, I’ve stated that I’ve used LACK shelves from IKEA (US link) to raise my TV on its cabinet. More surface area for that kind of ‘stand’ to sit on. I’ve even used sets of them, both the 12 inch models as well as the longer versions (60 inch?) to sit on them to raise the TV slightly more. 
 

This was back when I had a PLAYBAR, so there was less concern about side emitting speakers, like the Arc and Arc Ultra have. 

​@Stanley_4 - thanks for the links.  Just like your TV stand, the stand protrudes in front of the TV - ​@AjTrek1 - my TV stand is a little like the one posted above.  I can either put the Beam on the cabinet, in front of the stand, but I think it doesn’t look quite right.  At the moment I’ve placed the beam on the TV stand, but it’s too high for the Beam’s rubber feet to still be in contact with with cabinet - they’re “floating”.

The “stackable risers” ​@Stanley_4 posted look to be good, but I’m UK based and shipping with be very expensive.

OK… the Beam is approximately 7cm high. Therefore given that you say your TV and stand is similar to what ​@Stanley_4 posted then your only solution is to raise the TV and stand appropriately 8 cm. If not the Beam is blocking the lower portion of the TV screen. I’m sure you can find something in the UK to raise the TV and stand even if not the best in terms of aesthetics. 

For me raising the TV's stand wasn't a good option. The TV is pretty high already, risers under the base would add even more instability to the TV/cabinet combination and it would be unattractive. That last judgement alone when rendered by the spouse ends the discussion.

Adding the feet to my Arc and raising the Tv's height on the stand was much simpler, one thumbscrew and two kids to lift the TV 2 more inches and hang it back on the base.

Not sure but with the Beam the raised TV stand base might block the touch controls too.

Not to be argumentative. However, without a picture of the OP’s setup my suggestion seems to be the only solution. I’m only speaking of raising the TV/stand configuration not the cabinet it’s sitting on. But as I said without a clear rendering of what the OP’s has it a guessing game. So that said I’m out of suggestions/comments.