There are a lot of thing you can do to try to maintain your progress but there are other factors you have to look at. The bigger you are, the harder it is to hold muscle and the more you have to eat to stay that size. So if you only eat to be 190, you can never maintain anything more than that. So thats the first thing, figuring out the nutrition it will take to hold at a higher mass level. Your diet should be a lot different now than when you starte gear. Protein should be, at the very least 1 gram per lb, but probably even more.
And yes deca is hard to recover from. I dont suggest it anymore to people that are not on HRT. I dont think that you NEED deca when there are so many other good compounds tht will not shut you down as hard. LIke EQ for instance, or if you wanted to use nandrolone, NPP.
Running HCG through the cycle at around 250-500iu every 3 days right up to PCT will help you bounce back faster too. So smart move on that one
SARMs are still going to impact your naturl test production so it is not a "freebie". If you can avoid it between cycls, you will probably recover better.
Anything GH related will not impact natural production. GH, IGF-LR3, mk677, CJC, GHRP, these things can all help to maintain size and fullness and pump between cycles. I would look more into them. IGF LR3 for instance. I would come off, do PCT, then at the end of PCT when you are about to come off of the Clomid, start 30mcg IGF taken pre workout IM on training days. Do this for 3 wks. Then 60mcg for 3 wks, then a 3 wk break. You could also look at MK677, 25mg taken before bed for 4 wks on, 3-4 wks out. You can mix and match these products through your recovery period and have no impact on your sex hormone recovery