With this my sister (in the household of faith) we have to disagree, there is no more than one gospel preached in the scriptures, the list which you present simply refers to the various aspects of the one true gospel. As you mentioned they are simply “titles” referring to the same thing.
When the shepherds were in the field and the angle of the Lord appeared to them saying, “Behold I bring you good tidings (good news: the gospel message) of great joy which will be to all people.” (Luke 2:9) he brought them the one and only eternal gospel, the “everlasting gospel” (Rev 14:6) thus implying no need for any other. The angle said nothing about another gospel to be delivered.
There are indeed other gospels (messages); some of these are far from being considered “good news” to the vast majority of mankind especially those which speak of eternal torment as the wages of sin. These are such which the Apostle Paul designated as a “different gospel,” or “another gospel”, (Gal 1:6, 7) but as he said in truth, “is not another gospel”, for there can be but one.
As the Lord sent forth his servants to preach the one true gospel, so too Satan sends his ministers preaching "another gospel" and "perverting the gospel of Christ."
"If any man teaches otherwise withdraw thyself." (1 Tim. 6:3) Do not lend support to another Gospel other than the one you have received. "The faith first delivered to the Saints."
Do you do all that Jesus commanded in the Gospel of the Kingdom the 12 were instructed to spread to all of Jerusalem / Israel?
Do you forgive all men - is there anyone in your life you've never gone back and forgiven? If not, the Kingdom Gospel says your father will not forgive you. So, are we forgiven of all sins or not in the Gospel of Grace?
Must you endure until the end, at which time your sins are blotted out - or are they all forgiven as soon as your are baptized by the Spirit and sealed?
Are you or any Christian spreading the Gospel of the Kingdom healing the sick, cleansing lepers, raising the dead, casting out devils? Or - as Paul learned directly from God when he prayed three times for healing...His Grace is sufficient?
Have you been angry with your brother - if so, you are in danger of judgement under the Kingdom Gospel...
OR - "Whoever shall say to his brother, Raca, shall be in danger of the council." Okay - RACA RACA RACE - nope, no council danger....that's because we are under the Gospel of Grace - not Kingdom Gospel. Different Gospel's - Different audience, Different program.
How about this - "whosoever shal say, Thou fool, shall be in danger of hell fire." YET Paul, sure enough, said some folks were fools in Gal 3:1-3
I've never seen this in any church, 5:24 - how about you?
Matthew 5:24
(KJV Strong's)
24 Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.
Or...Give to him that asketh thee, and from him that borrow of the turn not thou away (Matt 5:24, Luke 6:30) - okay - since we are all following the letters in red - how about you write me a check for $25K ???
Have you given everything away to the poor? No? Then you don't get any treasure in Heaven....thems the Red Words - right from the Boss. Mark 10:21
Seems like folks rather spiritualize Jesus' instructions to the 12 - take the promises and leave the hard stuff / curses behind. Rather, it would be intellectually more honest to realize those words were for Israel - headed into the Kingdom to come on earth. When Israel turned their back on the Gospel - the Spirit left Israel and began a new program - the Mystery Gospel the Gospel of Grace.
God often changes instructions - but NOT his character. Luke 9:3 they are instructed not to bring anything with them, including money. Yet Luke 22:36 says - But now....bring money with you.
Where many who cast stones at dispensational thought go wrong, is to make a blanket statement without knowing the details. The Mystery revealed by Christ to Paul is NOT that gentiles would be saved - that's been the plan since Genesis, but HOW they would be saved is what's revealed in the Mystery. Gentiles were no longer required to go through Israel to receive blessings - that wall was torn down, and we all received a way to go directly to God for forgiveness - no Israel required (as Cornelius and the Centurion did - they went through Israel).
Look closely at Peter's interaction with Cornelius. Peter knocks at the door and tells Cornelius he has no idea why he sent there - he says that twice in Acts 10. He didn't get the message that it was okay to talk to a gentile until the day before he went to Cornelius - that's a chapter after Paul get's the nod to go the Gentiles - in real time, that's years later. Peter didn't get the memo from Titus 3, where it's okay to eat anything he wants - dietary laws are no more. Peter had to get that message pounded into his head three times in Acts - then he still doubted! Peter had not been teaching the Gospel of Grace to anyone. He had not been going to gentiles prior to Cornelius - gentiles' only shot at eternal life prior to the Gospel revealed to Paul, was to go through Israel...two Gospels.
There are no "various aspects" of other gospels in the Gospel of Grace - I didn't build a synagogue or give alms to the Jewish community, or any other works in order to earn favor to receive forgiveness. I went through the Gospel of Grace - 1 Cor 15:1-4.
Peter said works & fear is required for God's acceptance in Acts 10:
Acts 10:35
(KJV Strong's)
35 But in every nation he that feareth him,
and worketh righteousness, is accepted with him.
Paul said in Titus 3 the complete opposite - a different Gospel - no similar aspects there:
Titus 3:5
(KJV Strong's)
5
Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;
Opposite - no similar aspects there