Just from the title alone… I wanted to ask what possibly the best wallet to hold bitcoin in?
From the title alone and without going into what you need, the best way to store your BTC is in cold storage, that is either in a hardware or airgapped wallet. You should also ensure that you use a self custodial and open source wallet.
Before anyone says that it depends on what I need specifically then here is what I am here for. I can not decide which one really is the best based on the things I want. First of all I plan on holding some bitcoin (not huge amount) for a foreseeable future. However I also plan on swapping it for usdt from time to time aka when the price is getting high. I need a wallet that has low fees, preferably decentralized, and is secure.
Any recommendations?
Now to what you want, you may need to store your coins in a centralized exchange since you want to swap your BTC to usdt regularly. Take note that if you are talking about fees, then you don't have to worry about the wallet you are doing, as all they do is to estimate fees for you, and you have to check the mempool before making your tx. Store some of your funds in Electrum, and if you want to swap regularly, you have to keep some in a centralized exchange and bear the risks.